View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 9.3
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Johnson Controls Inc.
• Equipment: iSTAR Configuration Utility (ICU)
• Vulnerability: Stack-based Buffer Overflow

2. RISK EVALUATION

Successful exploitation of this vulnerability may allow an attacker to execute arbitrary code.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Johnson Controls reports the following versions of ICU are affected:

• ICU: Versions prior to 6.9.5

3.2 VULNERABILITY OVERVIEW

3.2.1 STACK-BASED BUFFER OVERFLOW CWE-121

Under certain circumstances, the ICU tool can have a buffer overflow issue.

CVE-2025-26382 has been assigned to this vulnerability. A CVSS v3.1 base score of 9.8 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-26382. A base score of 9.3 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Commercial Facilities, Government Services and Facilities, Transportation Systems, Energy
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Ireland

3.4 RESEARCHER

Reid Wightman of Dragos reported this vulnerability to Johnson Controls, Inc.

4. MITIGATIONS

Johnson Controls recommends users upgrade ICU to Version 6.9.5 or greater.

For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2025-04.

Aligning with CISA recommendations, Johnson Controls recommends taking steps to minimize risks to all building automation systems.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:

• Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the Internet.
• Locate control system networks and remote devices behind firewalls and isolating them from business networks.
• When remote access is required, use more secure methods, such as virtual private networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.

5. UPDATE HISTORY

• April 24, 2025: Initial Republication of Johnson Controls JCI-PSA-2025-04

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 9.3
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Nice
• Equipment: Linear eMerge E3
• Vulnerability: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary OS commands.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Nice Linear eMerge E3 are affected:

• Linear eMerge E3: Versions 1.00-07 and prior

3.2 VULNERABILITY OVERVIEW

3.2.1 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE-78

The Linear eMerge e3-Series through version 1.00-07 is vulnerable to an OS command injection vulnerability. A remote and unauthenticated attacker can execute arbitrary OS commands via the login_id parameter when invoking the forgot_password functionality over HTTP.

CVE-2024-9441 has been assigned to this vulnerability. A CVSS v3.1 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2024-9441. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Italy

3.4 RESEARCHER

Noam Rathaus of SSD Secure Disclosure reported this vulnerability to CISA.

4. MITIGATIONS

Nice did not indicate if/when a patch would be developed. Please see Nice's E3-Bulletin for the latest information on product security.

Nice also recommends the following defensive measures to minimize the risk of exploitation of this vulnerability:

• Minimize network exposure of devices, ensuring they are not accessible from the internet.
• Place the devices behind firewalls and isolate them from other networks.
• When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Keep your VPNs as up-to-date as possible.
• Change default credentials on the device.
• Change the default IP address of the device.

See Nice's Telephone Entry Bulletin for additional information.

Users should contact Nice with any questions.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.

5. UPDATE HISTORY

• April 24, 2025: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 9.3
• ATTENTION: Exploitable remotely/Low attack complexity
• Vendor: Planet Technology
• Equipment: Planet Technology Network Products
• Vulnerabilities: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), Use of Hard-coded Credentials, Missing Authentication for Critical Function

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to read or manipulate device data, gain administrative privileges, or alter database entries.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Planet Technology products are affected:

• UNI-NMS-Lite: Versions 1.0b211018 and prior
• NMS-500: All Versions
• NMS-1000V: All Versions
• WGS-804HPT-V2: Versions 2.305b250121 and prior
• WGS-4215-8T2S: Versions 1.305b241115 and prior

3.2 VULNERABILITY OVERVIEW

3.2.1 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND ('OS COMMAND INJECTION') CWE-78

UNI-NMS-Lite, NMS-500 and NMS-1000 are vulnerable to a command injection attack that could allow an unauthenticated attacker to read or manipulate device data.

CVE-2025-46271 has been assigned to this vulnerability. A CVSS v3 base score of 9.1 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

A CVSS v4 score has also been calculated for CVE-2025-46271. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N).

3.2.2 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND ('OS COMMAND INJECTION') CWE-78

WGS-80HPT-V2 and WGS-4215-8T2S are vulnerable to a command injection attack that could allow an unauthenticated attacker to execute OS commands on the host system.

CVE-2025-46272 has been assigned to this vulnerability. A CVSS v3 base score of 9.1 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

A CVSS v4 score has also been calculated for CVE-2025-46272. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N).

3.2.3 USE OF HARD-CODED CREDENTIALS CWE-798

All affected products use hard-coded credentials that could allow an unauthenticated attacker to gain administrative privileges to all UNI-NMS managed devices.

CVE-2025-46273 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-46273. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.2.4 USE OF HARD-CODED CREDENTIALS CWE-798

UNI-NMS-Lite, NMS-500 and NMS-1000 use hard-coded credentials that could allow an unauthenticated attacker to read, manipulate and create entries in the managed database.

CVE-2025-46274 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-46274. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.2.5 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306

WGS-80HPT-V2 and WGS-4215-8T2S are missing authentication that could allow an attacker to create an administrator account without knowing any existing credentials.

CVE-2025-46275 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-46275. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Taiwan

3.4 RESEARCHER

Kev Breen of Immersive reported these vulnerabilities to CISA.

4. MITIGATIONS

Planet Technology has released patches for the following devices:

• WGS-804HPT (v2)
• WGS-4215-8T2S
• UNI-NMS
• NMS-500
• NMS-1000V

CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, such as:

• Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
• Locate control system networks and remote devices behind firewalls and isolating them from business networks.
• When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.

5. UPDATE HISTORY

• April 24, 2025: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v3 10.0
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Schneider Electric
• Equipment: Modicon M580, Modicon M340, Modicon Premium, and Modicon Quantum
• Vulnerabilities: Trust Boundary Violation, Uncaught Exception, Exposure of Sensitive Information to an Unauthorized Actor, Authentication Bypass by Spoofing, Improper Access Control, Reliance on Untrusted Inputs in a Security Decision, Out-of-bounds Read

2. RISK EVALUATION

Successful exploitation of these vulnerabilities may risk execution of unsolicited command on the PLC, which could result in a loss of availability of the controller.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Schneider Electric reports that the following products are affected:

• Modicon M580: All versions prior to 2.90 (CVE-2018-7846, CVE-2018-7849, CVE-2018-7848, CVE-2018-7842, CVE-2018-7847, CVE-2018-7850, CVE-2018-7853, CVE-2018-7854, CVE-2019-6808, CVE-2019-6828, CVE-2019-6829, CVE-2019-6809)
• Modicon Momentum CPU (part numbers 171CBU*): All versions (CVE-2018-7857)
• Modicon Quantum: All versions prior to 3.60 (CVE-2018-7843, CVE-2018-7845, CVE-2018-7852, CVE-2018-7856, CVE-2019-6807)
• Modicon Quantum: All versions (CVE-2018-7846, CVE-2018-7849, CVE-2018-7848, CVE-2018-7842, CVE-2018-7847, CVE-2018-7850, CVE-2018-7855, CVE-2018-7857, CVE-2019-6806, CVE-2019-6808, CVE-2018-7844, CVE-2019-6828, CVE-2019-6809)
• Modicon Premium: All versions (CVE-2018-7846, CVE-2018-7849, CVE-2018-7848, CVE-2018-7842, CVE-2018-7847, CVE-2018-7850, CVE-2018-7855, CVE-2018-7857, CVE-2019-6806, CVE-2019-6808, CVE-2018-7844, CVE-2019-6828, CVE-2019-6809)
• Modicon Premium: All versions prior to 3.60 (CVE-2018-7852, CVE-2019-6807)
• PLC Simulator for EcoStruxure Control Expert: All versions prior to 15.1 (CVE-2018-7857)
• Modicon Premium: All versions prior to 3.20 (CVE-2018-7843, CVE-2018-7845, CVE-2018-7852, CVE-2018-7856, CVE-2019-6807)
• Modicon Momentum Unity M1E Processor (part numbers 171CBU*): All versions prior to SV2.6 (CVE-2018-7857, CVE-2019-6807)
• Modicon M580: All versions prior to sv4.20 (CVE-2018-7855)
• Modicon M340: All versions prior to SV3.60 (CVE-2018-7855)
• Modicon MC80: All versions (CVE-2018-7855)
• Modicon Momentum M1E: All versions (CVE-2018-7855)
• Modicon M580: All versions prior to 2.80 (CVE-2018-7843, CVE-2018-7845, CVE-2018-7852, CVE-2018-7856, CVE-2019-6807, CVE-2019-6830)
• Modicon Quantum Safety: All versions (CVE-2018-7846, CVE-2018-7849, CVE-2018-7848, CVE-2018-7842, CVE-2018-7847, CVE-2018-7850, CVE-2018-7852, CVE-2018-7855, CVE-2018-7857, CVE-2019-6806, CVE-2019-6808, CVE-2018-7844)
• Modicon M340: All versions prior to 3.10 (CVE-2018-7846, CVE-2018-7849, CVE-2018-7843, CVE-2018-7848, CVE-2018-7842, CVE-2018-7847, CVE-2018-7850, CVE-2018-7845, CVE-2018-7852, CVE-2018-7854, CVE-2018-7856, CVE-2019-6807, CVE-2019-6808, CVE-2019-6828, CVE-2019-6829, CVE-2019-6809)
• Modicon M340: All versions (CVE-2018-7857, CVE-2019-6806, CVE-2018-7844)
• Modicon M580: All versions (CVE-2018-7857, CVE-2019-6806, CVE-2018-7844)
• Modicon MC80 BMKC80*: Versions prior to 1.80 (CVE-2018-7857)

3.2 VULNERABILITY OVERVIEW

3.2.1 TRUST BOUNDARY VIOLATION CWE-501

A trust boundary violation vulnerability on connection to the controller exists, which could cause unauthorized access by conducting a brute force attack on Modbus protocol to the controller.

CVE-2018-7846 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

A CVSS v4 score has also been calculated for  CVE-2018-7846. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N).

3.2.2 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability exists, which could cause a possible denial-of-service due to improper data integrity check when sending files to the controller over Modbus.

CVE-2018-7849 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for  CVE-2018-7849. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.3 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability exists, which could cause denial-of-service when reading memory blocks with an invalid data size or with an invalid data offset in the controller over Modbus.

CVE-2018-7843 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for  CVE-2018-7843. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.4 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200

An information exposure vulnerability exists, which could cause the disclosure of SNMP information when reading files from the controller over Modbus.

CVE-2018-7848 has been assigned to this vulnerability. A CVSS v3 base score of 5.9 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for  CVE-2018-7848. A base score of 8.2 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N).

3.2.5 AUTHENTICATION BYPASS BY SPOOFING CWE-290

An authentication bypass by spoofing vulnerability exists, which could cause an elevation of privilege by conducting a brute force attack on Modbus parameters sent to the controller.

CVE-2018-7842 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for  CVE-2018-7842. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N).

3.2.6 IMPROPER ACCESS CONTROL CWE-284

An improper access control vulnerability exists, which could cause denial-of-service or potential code execution by overwriting configuration settings of the controller over Modbus.

CVE-2018-7847 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for  CVE-2018-7847. A base score of 9.3 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.2.7 RELIANCE ON UNTRUSTED INPUTS IN A SECURITY DECISION CWE-807

A reliance on untrusted inputs in a security decision vulnerability exists, which could cause invalid information displayed in Unity Pro software.

CVE-2018-7850 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for  CVE-2018-7850. A base score of 9.3 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.2.8 OUT-OF-BOUNDS READ CWE-125

An out-of-bounds read vulnerability exists, which could cause the disclosure of unexpected data from the controller when reading specific memory blocks in the controller over Modbus

CVE-2018-7845 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for  CVE-2018-7845. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N).

3.2.9 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability exists, which could cause denial-of-service when an invalid private command parameter is sent to the controller over Modbus.

CVE-2018-7852 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for  CVE-2018-7852. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.10 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability exists, which could cause denial-of-service when reading invalid physical memory blocks in the controller over Modbus.

CVE-2018-7853 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for  CVE-2018-7853. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.11 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability exists, which could cause a denial-of-service when sending invalid debug parameters to the controller over Modbus.

CVE-2018-7854 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for  CVE-2018-7854. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.12 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability exists, which could cause a denial-of-service when sending invalid breakpoint parameters to the controller over Modbus.

CVE-2018-7855 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for  CVE-2018-7855. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.13 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability exists, which could cause a possible denial-of-service when writing invalid memory blocks to the controller over Modbus

CVE-2018-7856 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for  CVE-2018-7856. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.14 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability exists, which could cause a possible denial-of-service when writing out-of-bounds variables to the controller over Modbus.

CVE-2018-7857 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for  CVE-2018-7857. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.15 UNCAUGHT EXCEPTION CWE-248

An information exposure vulnerability exists, which could cause the disclosure of SNMP information when reading variables in the controller using Modbus.

CVE-2019-6806 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for  CVE-2019-6806. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N).

3.2.16 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability could cause a possible denial-of-service when writing sensitive application variables to the controller over Modbus.

CVE-2019-6807 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for  CVE-2019-6807. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.17 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability exists, which could cause a remote code execution by overwriting configuration settings of the controller over Modbus

CVE-2019-6808 has been assigned to this vulnerability. A CVSS v3 base score of 10.0 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for  CVE-2019-6808. A base score of 10.0 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).

3.2.18 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200

An exposure of sensitive information to an unauthorized actor vulnerability could cause a remote code execution by overwriting configuration settings of the controller over Modbus

CVE-2018-7844 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for  CVE-2018-7844. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N).

3.2.19 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability could cause a possible denial-of-service when sending an appropriately timed HTTP request to the controller.

CVE-2019-6830 has been assigned to this vulnerability. A CVSS v3 base score of 5.9 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for  CVE-2019-6830. A base score of 8.2 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.20 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability could cause a possible denial-of-service when reading specific coils and registers in the controller over Modbus.

CVE-2019-6828 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for  CVE-2019-6828. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.21 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability could cause a possible denial-of-service when writing to specific memory addresses in the controller over Modbus.

CVE-2019-6829 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for  CVE-2019-6829. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.22 UNCAUGHT EXCEPTION CWE-248

An uncaught exception vulnerability exists cause a possible denial-of-service when reading invalid data from the controller.

CVE-2019-6809 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for  CVE-2019-6809. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Critical Manufacturing, Energy
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: France

3.4 RESEARCHER

These vulnerabilities were reported to Schneider Electric by the following researchers:
Jared Rittle of Cisco Talos, Pavel Nesterov, Artem Zinenko of Kaspersky, Gao Jian of ns focus, and Dong Yang of Dingxiang Dongjian Security Lab.

4. MITIGATIONS

Schneider Electric has identified the following specific mitigations users can apply to reduce risk. Please see SEVD-2019-134-11 for detailed update steps.

Modicon M580:

• A fix is available for (CVE-2018-7846, CVE-2018-7849, CVE-2018-7848, CVE-2018-7842, CVE-2018-7845, CVE-2018-7847, CVE-2018-7850, CVE-2018-7853, CVE-2018-7854, CVE-2018-7856, CVE-2018-7857, CVE-2019-6808, CVE-2019-6828, CVE-2019-6829, CVE-2019-6830, CVE-2019-6809) on Modicon M580 firmware V3.10.
• A fix is available for (CVE-2018-7843, CVE-2018-7852, CVE-2019-6807) on Modicon M580 firmware V2.80.

Modicon M340:

• A fix is available for (CVE-2018-7846, CVE-2018-7849, CVE-2018-7843, CVE-2018-7848, CVE-2018-7842, CVE-2018-7847, CVE-2018-7850, CVE-2018-7845, CVE-2018-7852, CVE-2018-7854, CVE-2018-7856, CVE-2019-6807, CVE-2019-6808, CVE-2019-6828, CVE-2019-6829, CVE-2019-6809) on Modicon M340 firmware V3.20.

Modicon MC80:

• A fix is available for (CVE-2018-7857) on Modicon MC80 (part numbers BMKC80*).

Modicon Premium Modicon Momentum Unity M1E Processor:

• A fix is available for (CVE-2019-6807, CVE-2018-7857) on (part numbers 171CBU*) <SV2.6.

Modicon Quantum:

• A fix is available for (CVE-2018-7845, CVE-2018-7856) on Modicon Quantum V3.60.
• There is no fix available for (CVE-2018-7842, CVE-2018-7843, CVE-2018-7844, CVE-2018-7846, CVE-2018-7847, CVE-2018-7848, CVE-2018-7849, CVE-2018-7850, CVE-2018-7852, CVE-2018-7855, CVE-2018-7857, CVE-2019-6806, CVE-2019-6807, CVE-2019-6808, CVE-2019-6809, CVE-2019-6828). Schneider Electric's Modicon Quantum and Quantum Safety controllers have reached their end of life and are no longer commercially available. They have been replaced by the Modicon M580 or M580 Safety ePAC controller, the most current product offer. Users should strongly consider migrating to the Modicon M580 ePAC. Please contact a local Schneider Electric technical support for more information.

Modicon Premium:

• A fix is available for (CVE-2018-7845, CVE-2018-7856) on Modicon Premium V3.20, please contact Schneider Electric customer support to get the V3.20 firmware.
• There is no fix available for (CVE-2018-7842, CVE-2018-7843, CVE-2018-7844, CVE-2018-7847, CVE-2018-7848, CVE-2018-7849, CVE-2018-7850, CVE-2018-7852, CVE-2018-7855, CVE-2018-7857, CVE-2019-6806, CVE-2019-6807, CVE-2019-6808, CVE-2019-6809, CVE-2019-6828). Schneider Electric's Modicon Premium controllers have reached their end of life and are no longer commercially available. They have been replaced by the Modicon M580 ePAC controller, the most current product offer. Users should strongly consider migrating to the Modicon M580 ePAC. Please contact a local Schneider Electric technical support for more information.

PLC Simulator for EcoStruxure Control Expert:

• A fix is available for (CVE-2018-7857) on PLC Simulator.

Schneider Electric recommends the following to help mitigate weaknesses in the management of Modbus protocol:

• Set up an application password in the project properties.
• Set up network segmentation and implement a firewall to block all unauthorized access to Port 502/TCP.
• Configure the access control list following the recommendations of user manuals.
• Set up secure communication according to the guidelines for the product.
• Consider use of an external firewall device.
• Please see SEVD-2019-134-11 for detailed mitigation information.

For more information see the associated Schneider Electric security advisory Modicon Controllers - SEVD-2019-134-11 PDF Version, Modicon Controllers - SEVD-2019-134-11 CSAF Version.

Schneider Electric strongly recommends the following industry cybersecurity best practices:

• Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.
• Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks.
• Place all controllers in locked cabinets and never leave them in the "Program" mode.
• Never connect programming software to any network other than the network for the devices that it is intended.
• Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks.
• Never allow laptops that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation.
• Minimize network exposure for all control system devices and systems, and ensure that they are not accessible from the Internet.
• When remote access is required, use secure methods, such as virtual private networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.

CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open attachments in unsolicited email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.

5. UPDATE HISTORY

• April 24, 2025: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 8.7
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Vestel
• Equipment: AC Charger
• Vulnerability: Exposure of Sensitive System Information to an Unauthorized Control Sphere

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker access to sensitive information, such as credentials which could subsequently enable them to cause a denial of service or partial loss of integrity of the charger.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of AC Charger are affected:

• AC Charger EVC04: Version 3.75.0

3.2 VULNERABILITY OVERVIEW

3.2.1 EXPOSURE OF SENSITIVE SYSTEM INFORMATION TO AN UNAUTHORIZED CONTROL SPHERE CWE-497

Affected versions of the Vestel AC Charger contain a vulnerability that could enable an attacker to access files containing sensitive information, such as credentials which could be used to further compromise the device.

CVE-2025-3606 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for CVE-2025-3606. A base score of 8.7 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Transportation Systems
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Turkey

3.4 RESEARCHER

Cumhur Kizilari reported this vulnerability to CISA.

4. MITIGATIONS

Vestel strongly suggests that users of the related AC chargers update to V3.187 or a higher version.

Vestel also recommends the following mitigations to reduce risk:

Avoid using open networks:

• Use secure methods like Virtual Private Networks (VPNs) for remote access. Regularly update VPNs to their latest versions and ensure that connected devices maintain strong security measures.
• Reduce network exposure for applications and endpoints. Only make them accessible via the Internet if specifically designed for and required by their intended use.

Login Credentials Management:

• Force the end user to change the factory default username and password of the web configuration page.
• Remove any printed documents such as installation guides, instruction books, and quick start guides from the web where login credentials are featured.

Please refer to Vestel's advisory for more information.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open attachments in unsolicited email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.

5. UPDATE HISTORY

• April 24, 2025: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 8.7
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: ABB
• Equipment: MV Drives
• Vulnerabilities: Improper Restriction of Operations within the Bounds of a Memory Buffer, Improper Input Validation, Out-of-bounds Write

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to gain full access to the drive or cause a denial-of-service condition.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

ABB reports that the following MV Drives are affected by CODESYS RTS (Runtime System) vulnerabilities:

• ACS6080: LAAAA 2.10.0 to LAAAB 5.06.1
• ACS5000: LAAAB 4.03.0 to LAAAB 5.06.1
• ACS6000: LAAAA 2.10.0 to LAAAB 5.06.1

3.2 VULNERABILITY OVERVIEW

3.2.1 IMPROPER RESTRICTION OF OPERATIONS WITHIN THE BOUNDS OF A MEMORY BUFFER CWE-119

The CODESYS Control runtime system does not restrict the memory access. An improper restriction of operations within the bounds of a memory buffer allows an attacker with access to the drive with user privileges to gain full access of the drive.

CVE-2022-4046 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2022-4046. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.2.2 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after successful user authentication, specifically crafted network communication requests with inconsistent content can cause the CmpApp component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37550 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37550. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.3 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after successful user authentication, specifically crafted network communication requests with inconsistent content can cause the CmpApp component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37549 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37549. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.4 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after successful user authentication, specifically crafted network communication requests with inconsistent content can cause the CmpApp component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37548 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37548. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.5 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after successful user authentication, specifically crafted network communication requests with inconsistent content can cause the CmpApp component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37547 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37547. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.6 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after a user successfully authenticates, specially crafted network communication requests with inconsistent content can cause the CmpApp component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37546 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37546. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.7 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after successful user authentication, specifically crafted network communication requests with inconsistent content can cause the CmpApp component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37545 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37545. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.8 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after successful user authentication, specifically crafted network communication requests with inconsistent content can cause the CmpAppBP component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37556 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37556. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.9 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after successful user authentication, specifically crafted network communication requests with inconsistent content can cause the CmpAppBP component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37555 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37555. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.10 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after successful user authentication, specifically crafted network communication requests with inconsistent content can cause the CmpAppBP component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37554 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37554. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.11 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after successful user authentication, specifically crafted network communication requests with inconsistent content can cause the CmpAppBP component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37553 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37553. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.12 IMPROPER INPUT VALIDATION CWE-20

In multiple versions of various CODESYS products, after successful user authentication, specifically crafted network communication requests with inconsistent content can cause the CmpAppBP component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37552 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37552. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.13 OUT-OF-BOUNDS WRITE CWE-787

After successful user authentication in multiple versions of various CODESYS products, specifically crafted remote communication requests can cause the CmpAppBP component to overwrite a heap-based buffer, potentially leading to a denial-of-service condition.

CVE-2023-37557 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37557. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.14 IMPROPER INPUT VALIDATION CWE-20

After successful user authentication in multiple versions of various CODESYS products, specifically crafted network communication requests with inconsistent content can cause the CmpAppForce component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37559 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37559. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.15 IMPROPER INPUT VALIDATION CWE-20

After successful user authentication in multiple versions of various CODESYS products, specifically crafted network communication requests with inconsistent content can cause the CmpAppForce component to read from an invalid internal address, potentially leading to a denial-of-service condition.

CVE-2023-37558 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2023-37558. A base score of 7.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Switzerland

3.4 RESEARCHER

ABB reported these vulnerabilities to CISA.

4. MITIGATIONS

ABB recommends users apply a firmware update as soon as possible to the latest firmware, i.e. LAAAB v. 5.07 and higher, for the affected products. ABB has addressed the CODESYS Runtime System vulnerabilities by disabling the IEC online programming communication by default. As a result, CODESYS communication between affected products and the ABB Automation Builder or ABB Drive Application Builder tools is disabled.
It should be noted that the CODESYS application continues to run on the Drive and if it is necessary to establish communication with CODESYS RTS, for example to debug the CODESYS application, this is possible through the drive parameter configuration. Open the user lock via the "96.02 Pass code" parameter and make sure that bit 9 "Enable online IEC programming" is set to TRUE in the "96.102 User lock functionality" parameter. IMPORTANT: After this task, be sure to disable CODESYS communication by setting the bit back to FALSE.
A future firmware update is planned to update the CODESYS RTS library, which will further strengthen defenses for the vulnerabilities mentioned above.

ABB recommends the following mitigating factors:
To exploit these vulnerabilities, a successful login to the affected product is required. This can be achieved by one of the following methods:

• Connecting a computer to the Drive that is running Drive Automation Builder or Drive Composer.
• Having access to the local network where the drive is located. In this case, an attacker could send malformed packets directly to the drive.
  To make the attack more difficult and less likely to succeed, provide network isolation where the drive is located and ensure that no computer running Drive Automation Builder or Drive Composer is connected to the drive without proper security controls. Please refer to "General security recommendations" for further advise on how to keep drive secure.

ABB proposes the following workaround to mitigate this threat for situations where the above actions are not feasible:

• Set bit 2 "Disable file download" to TRUE in the "96.102 User lock functionality" parameter.
  Although these workarounds will not correct the underlying vulnerability, they can help block known attack vectors. Please see below to understand possible reduced functionality of the drive. IMPORTANT: Contact a qualified and certified ABB personnel for more information about the parameter handling of the affected products.
  Impact of workaround: This workaround restricts the updating of IEC programs, but existing IEC programs on Drives can still be used. To update an IEC program, the operator must unlock the user lock and enable file download in a protected network environment. It is highly recommended to disable file download, as vulnerabilities are more easily exploitable when file download is enabled. WARNING: The user lock cannot be opened even by ABB if the pass code is lost.

For more information, see ABB's security advisory 9AKK108470A9989.

ABB strongly recommends the following general cybersecurity practices for any installation of software-related products (this list is non-exhaustive):

• Isolate special purpose networks (e.g., automation systems) and remote devices behind firewalls, and separate them from any general-purpose network (e.g., office or home networks).
• Install physical controls to prevent unauthorized personnel from accessing devices, components, peripheral equipment, and networks.
• Never connect programming software or computers containing programming software to any network other than the network intended for the devices.
• Scan all data imported into your environment before use to detect potential malware infections.
• Minimize network exposure for all applications and endpoints to ensure they are not accessible from the Internet unless designed for such exposure and required for the intended use.
• Ensure all nodes are always up to date with installed software, operating system, and firmware patches, as well as anti-virus and firewall protections.
• When remote access is required, use secure methods, such as virtual private networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.
• Install the drive in a secure location accessible only to authorized personnel.
• Install physical controls to ensure only authorized personnel can access devices connected to the drive (e.g., computers, peripheral equipment, and networks).
• Avoid connecting computers containing Drive Automation Builder programming software to any network other than the network intended for the devices.
• Ensure security controls are followed on computers connected to the drive, such as installing updated security patches, firewalls, and anti-virus software, and running only authorized software. It is the user's responsibility to ensure these conditions.
• More information on recommended practices can be found in Protecting operations through cyber security: ABB Drives solutions.

CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open attachments in unsolicited email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.

5. UPDATE HISTORY

• April 22, 2025: Initial Republication of ABB PSIRT 9AKK108470A9989

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 9.3
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Schneider Electric
• Equipment: Wiser Home Controller WHC-5918A
• Vulnerability: Exposure of Sensitive Information to an Unauthorized Actor

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to disclose sensitive credentials.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Schneider Electric reports the following products are affected:

• Wiser Home Controller WHC-5918A: All versions

3.2 VULNERABILITY OVERVIEW

3.2.1 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200

An information exposure vulnerability exists that could cause disclosure of credentials when a specially crafted message is sent to the device.

CVE-2024-6407 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2024-6407. A base score of 9.3 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Energy
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: France

3.4 RESEARCHER

Schneider Electric reported this vulnerability to CISA.

4. MITIGATIONS

Schneider Electric reports the Wiser Home Controller WHC-5918A product has been discontinued and is out of support. Users should consider upgrading to the latest product offering, C-Bus, Home Controller, SpaceLogic IP, Free Standing, 24V DC, 5200WHC2, or removing the Wiser Home Controller WHC-5918A from service.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:

• Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the Internet.
• Locate control system networks and remote devices behind firewalls and isolating them from business networks.
• When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open attachments in unsolicited email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.

5. UPDATE HISTORY

• April 22, 2025: Initial Republication of Schneider Electric Advisory SEVD-2024-191-01

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 6.3
• ATTENTION: Exploitable remotely
• Vendor: Siemens
• Equipment: TeleControl Server Basic
• Vulnerability: Improper Handling of Length Parameter Inconsistency

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to cause the application to allocate exhaustive amounts of memory and subsequently create a denial-of-service condition.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Siemens reports that the following products are affected:

• TeleControl Server Basic: Versions prior to V3.1.2.2

3.2 VULNERABILITY OVERVIEW

3.2.1 IMPROPER HANDLING OF LENGTH PARAMETER INCONSISTENCY CWE-130

The affected product does not properly validate a length field in a serialized message, which it uses to determine the amount of memory to be allocated for deserialization. This could allow an unauthenticated remote attacker to cause the application to allocate exhaustive amounts of memory and subsequently create a partial denial-of-service condition. Successful exploitation is only possible in redundant TeleControl Server Basic setups and only if the connection between the redundant servers has been disrupted.

CVE-2025-29931 has been assigned to this vulnerability. A CVSS v3.1 base score of 3.7 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

A CVSS v4 score has also been calculated for CVE-2025-29931. A base score of 6.3 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Energy, Water and Wastewater Systems, Transportation Systems
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Germany

3.4 RESEARCHER

Jin Huang from ADLab of Venustech coordinated this vulnerability with Siemens.

4. MITIGATIONS

Siemens has released a new version for TeleControl Server Basic and recommends to update to the latest version.

• Update to V3.1.2.2 or later version.

Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk:

• Disable TeleControl Server Basic redundancy, if not used.

As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens' operational guidelines for industrial security and following recommendations in the product manuals.

Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage.

For more information see the associated Siemens security advisory SSA-395348 in HTML and CSAF.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:

• Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
• Locate control system networks and remote devices behind firewalls and isolating them from business networks.
• When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability has a high attack complexity.

5. UPDATE HISTORY

• April 22, 2025: Initial Republication of Siemens ProductCERT SSA-395348