Security Reports (old posts, page 6)

RSS feed

Mitsubishi Electric CC-Link IE TSN

View CSAF

1. EXECUTIVE SUMMARY

  • CVSS v4 8.2
  • ATTENTION: Exploitable remotely
  • Vendor: Mitsubishi Electric
  • Equipment: CC-Link IE TSN Remote I/O module, CC-Link IE TSN Analog-Digital Converter module, CC-Link IE TSN Digital-Analog Converter module, CC-Link IE TSN FPGA module, CC-Link IE TSN Remote Station Communication LSI CP620 with GbE-PHY
  • Vulnerability: Improper Validation of Specified Quantity in Input

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to cause a denial-of-service condition on the affected products.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Mitsubishi Electric CC-Link IE TSN, a network controller, are affected:

  • CC-Link IE TSN Remote I/O module NZ2GN2S1-32D/32T/32TE/32DT/32DTE: Versions 09 and prior
  • CC-Link IE TSN Remote I/O module NZ2GN2B1-32D/32T/32TE/32DT/32DTE: Versions 09 and prior
  • CC-Link IE TSN Remote I/O module NZ2GNCF1-32D/32T: Versions 09 and prior
  • CC-Link IE TSN Remote I/O module NZ2GNCE3-32D/32DT: Versions 09 and prior
  • CC-Link IE TSN Remote I/O module NZ2GN12A4-16D/16DE: Versions 09 and prior
  • CC-Link IE TSN Remote I/O module NZ2GN12A2-16T/16TE: Versions 09 and prior
  • CC-Link IE TSN Remote I/O module NZ2GN12A42-16DT/16DTE: Versions 09 and prior
  • CC-Link IE TSN Remote I/O module NZ2GN2S1-16D/16T/16TE: Versions 09 and prior
  • CC-Link IE TSN Remote I/O module NZ2GN2B1-16D/16T/16TE: Versions 09 and prior
  • CC-Link IE TSN Analog-Digital Converter module NZ2GN2S-60AD4: Versions 07 and prior
  • CC-Link IE TSN Analog-Digital Converter module NZ2GN2B-60AD4: Versions 07 and prior
  • CC-Link IE TSN Digital-Analog Converter module NZ2GN2S-60DA4: Versions 07 and prior
  • CC-Link IE TSN Digital-Analog Converter module NZ2GN2B-60DA4: Versions 07 and prior
  • CC-Link IE TSN FPGA module NZ2GN2S-D41P01/D41D01/D41PD02: Version 01
  • CC-Link IE TSN Remote Station Communication LSI CP620 with GbE-PHY NZ2GACP620-300/60: Versions 1.08J and prior

3.2 VULNERABILITY OVERVIEW

3.2.1 IMPROPER VALIDATION OF SPECIFIED QUANTITY IN INPUT CWE-1284

A remote attacker could cause a denial-of-service (DoS) condition in the products by sending specially crafted UDP packets. The threat arises when the affected product does not receive a valid UDP packet within 3 seconds after receiving a specially crafted UDP packet from a remote attacker, necessitating a system reset of the product for recovery.

CVE-2025-3511 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.9 has been calculated; the CVSS vector string is (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-2025-3511. A base score of 8.2 has been calculated; the CVSS vector string is (AV:N/AC:H/AT:N/PR:N/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: Japan

3.4 RESEARCHER

Mitsubishi Electric reported this vulnerability to CISA.

4. MITIGATIONS

Mitsubishi Electric recommends that users update to the following:

  • CC-Link IE TSN Remote I/O module NZ2GN2S1-32D/32T/32TE/32DT/32DTE: Versions 10 or later
  • CC-Link IE TSN Remote I/O module NZ2GN2B1-32D/32T/32TE/32DT/32DTE: Versions 10 or later
  • CC-Link IE TSN Remote I/O module NZ2GNCF1-32D/32T: Versions 10 or later
  • CC-Link IE TSN Remote I/O module NZ2GNCE3-32D/32DT: Versions 10 or later
  • CC-Link IE TSN Remote I/O module NZ2GN12A4-16D/16DE: Versions 10 or later
  • CC-Link IE TSN Remote I/O module NZ2GN12A2-16T/16TE: Versions 10 or later
  • CC-Link IE TSN Remote I/O module NZ2GN12A42-16DT/16DTE: Versions 10 or later
  • CC-Link IE TSN Remote I/O module NZ2GN2S1-16D/16T/16TE: Versions 10 or later
  • CC-Link IE TSN Remote I/O module NZ2GN2B1-16D/16T/16TE: Versions 10 or later
  • CC-Link IE TSN Analog-Digital Converter module NZ2GN2S-60AD4: Versions 08 or later
  • CC-Link IE TSN Analog-Digital Converter module NZ2GN2B-60AD4: Versions 08 or later
  • CC-Link IE TSN Digital-Analog Converter module NZ2GN2S-60DA4: Versions 08 or later
  • CC-Link IE TSN Digital-Analog Converter module NZ2GN2B-60DA4: Versions 08 or later
  • CC-Link IE TSN FPGA module NZ2GN2S-D41P01/D41D01/D41PD02: Versions 02 or later
  • CC-Link IE TSN Remote Station Communication LSI CP620 with GbE-PHY NZ2GACP620-300/60: Versions 1.09K or later

Mitsubishi Electric recommends users take the following mitigation measures to minimize the risk of exploiting this vulnerability:

  • Use a firewall, virtual private network (VPN), etc. to prevent unauthorized access when Internet access is required.
  • Use within a LAN and block access from untrusted networks and hosts through firewalls.
  • Restrict physical access to the affected products and the LAN to which they are connected.
  • Install anti-virus software on your PC that can access the product.

For more information, see Mitsubishi Electric advisory 2025-001.

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:

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

  • May 8, 2025 - Initial Republication Mitsubishi Electric Advisory 2025-001

Pixmeo OsiriX MD

View CSAF

1. EXECUTIVE SUMMARY

  • CVSS v4 9.3
  • ATTENTION: Exploitable remotely/low attack complexity
  • Vendor: Pixmeo
  • Equipment: OsiriX MD
  • Vulnerabilities: Use After Free, Cleartext Transmission of Sensitive Information

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to cause memory corruption, resulting in a denial-of-service condition or to steal credentials.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following Pixmeo products are affected:

  • OsiriX MD: Versions 14.0.1 (Build 2024-02-28) and prior

3.2 VULNERABILITY OVERVIEW

3.2.1 USE AFTER FREE CWE-416

The affected product is vulnerable to a use after free scenario, which could allow an attacker to upload a crafted DICOM file and cause memory corruption leading to a denial-of-service condition.

CVE-2025-27578 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:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2025-27578. 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:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.2 USE AFTER FREE CWE-416

The affected product is vulnerable to a local use after free scenario, which could allow an attacker to locally import a crafted DICOM file and cause memory corruption or a system crash.

CVE-2025-31946 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.2 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

A CVSS v4 score has also been calculated for CVE-2025-31946. A base score of 6.9 has been calculated; the CVSS vector string is (AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N).

3.2.3 CLEARTEXT TRANSMISSION OF SENSITIVE INFORMATION CWE-319

The Osirix MD Web Portal sends credential information without encryption, which could allow an attacker to steal credentials.

CVE-2025-27720 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.4 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).

A CVSS v4 score has also been calculated for CVE-2025-27720. 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).

3.3 BACKGROUND

  • CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health
  • COUNTRIES/AREAS DEPLOYED: Worldwide
  • COMPANY HEADQUARTERS LOCATION: Switzerland

3.4 RESEARCHER

Chizuru Toyama of TXOne Networks and Canaan Kao of TXOne Networks reported these vulnerabilities to CISA.

4. MITIGATIONS

Pixmeo recommends users to download the latest version of OsiriX MD.

For additional support regarding OsiriX MD, users should contact Pixmeo directly.

CISA recommends users take defensive measures to minimize the risk of exploitation of this 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.

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

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

5. UPDATE HISTORY

  • May 8, 2025: Initial Publication

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation.

  • CVE-2024-6047 GeoVision Devices OS Command Injection Vulnerability
  • CVE-2024-11120 GeoVision Devices OS Command Injection Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the Known Exploited Vulnerabilities Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

BrightSign Players

View CSAF

1. EXECUTIVE SUMMARY

  • CVSS v4 8.5
  • ATTENTION: Exploitable remotely/low attack complexity
  • Vendor: BrightSign
  • Equipment: Brightsign Players
  • Vulnerabilities: Execution with Unnecessary Privileges

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow for privilege escalation on the device, easily guessed passwords, or for arbitrary code to be executed on the underlying operating system.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Products using the following versions of BrightSign OS are affected:

  • BrightSign OS series 4 players: Versions prior to v8.5.53.1
  • BrightSign OS series 5 players: Versions prior to v9.0.166

3.2 VULNERABILITY OVERVIEW

3.2.1 EXECUTION WITH UNNECESSARY PRIVILEGES CWE-250

BrightSign players running BrightSign OS series 4 prior to v8.5.53.1 or series 5 prior to v9.0.166 contain an execution with unnecessary privileges vulnerability, allowing for privilege escalation on the device once code execution has been obtained.

CVE-2025-3925 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-3925. A base score of 8.5 has been calculated; the CVSS vector string is (CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

  • CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Financial Services, Food and Agriculture, Healthcare and Public Health
  • COUNTRIES/AREAS DEPLOYED: Worldwide
  • COMPANY HEADQUARTERS LOCATION: United States

3.4 RESEARCHER

Adam Merrill, a member of the Adversarial Modeling and Penetration Testing (AMPT) team at Sandia National Laboratories, reported this vulnerability to CISA.

4. MITIGATIONS

BrightSign fixed CVE-2025-3925 in v8.5.53.1 (for series 4 players) and v9.0.166 (for series 5 players). Both of these have been released and available on the BrightSign download site.

BrightSign recommends the following security practices:

  • Change default passwords when the device is initially set up.
  • Disable the local DWS as described in "High Security settings".
  • Disable the SSH/telnet server when not being used - it is not enabled by default.
  • Devices should be located where an attacker does not have physical access to the device.
  • SD and USB ports can be disabled if not needed.

For more information, please contact BrightSign via their website.

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 this vulnerability has been reported to CISA at this time.

5. UPDATE HISTORY

  • May 6, 2025: Initial Publication

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation.

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the Known Exploited Vulnerabilities Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

CISA Releases Three Industrial Control Systems Advisories

CISA released three Industrial Control Systems (ICS) advisories on May 6, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

CISA encourages users and administrators to review newly released ICS advisories for technical details and mitigations.

Milesight UG65-868M-EA

View CSAF

1. EXECUTIVE SUMMARY

  • CVSS v4 6.1
  • ATTENTION: Exploitable remotely/low attack complexity
  • Vendor: Milesight
  • Equipment: UG65-868M-EA
  • Vulnerability: Improper Access Control for Volatile Memory Containing Boot Code

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow any user with admin privileges to inject arbitrary shell commands.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of UG65-868M-EA, an industrial gateway, are affected:

  • UG65-868M-EA: Firmware versions prior to 60.0.0.46

3.2 VULNERABILITY OVERVIEW

3.2.1 Improper Access Control for Volatile Memory Containing Boot Code CWE-1274

An admin user can gain unauthorized write access to the /etc/rc.local file on the device, which is executed on a system boot.

CVE-2025-4043 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.8 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N).

A CVSS v4 score has also been calculated for CVE-2025-4043. A base score of 6.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N).

3.3 BACKGROUND

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

3.4 RESEARCHER

Joe Lovett of Pen Test Partners reported this vulnerability to CISA.

4. MITIGATIONS

Milesight released the latest firmware Version 60.0.0.46 for the UG65 gateway. Users can download the latest firmware from the Milesight download center.

Please contact Milesight technical support for more information about this issue and for instructions for installing the latest firmware.

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

  • Ensure that principles of least privilege are followed.
  • 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

  • May 6, 2025: Initial Publication

Optigo Networks ONS NC600

View CSAF

1. EXECUTIVE SUMMARY

  • CVSS v4 9.3
  • ATTENTION: Exploitable remotely/low attack complexity
  • Vendor: Optigo Networks
  • Equipment: ONS NC600
  • Vulnerability: Use of Hard-coded Credentials

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to establish an authenticated connection with the hard-coded credentials and perform OS command executions.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Optigo Networks ONS NC600 are affected:

  • ONS NC600: Versions 4.2.1-084 through 4.7.2-330

3.2 VULNERABILITY OVERVIEW

3.2.1 USE OF HARD-CODED CREDENTIALS CWE-798

In Optigo Networks ONS NC600 versions 4.2.1-084 through 4.7.2-330, an attacker could connect with the device's ssh server and utilize the system's components to perform OS command executions.

CVE-2025-4041 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-2025-4041. 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: Canada

3.4 RESEARCHER

Tomer Goldschmidt of Claroty Team82 reported this vulnerability to CISA.

4. MITIGATIONS

Optigo Networks recommends users implement at least one of the following additional mitigations:

  • Use a dedicated NIC on the BMS computer and exclusively use the computer for connecting to OneView to manage your OT network configuration.
  • Set up a router firewall with a white list for the devices permitted to access OneView.
  • Connect to OneView via secure VPN.

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.

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

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

5. UPDATE HISTORY

  • May 6, 2025: Initial Publication

Unsophisticated Cyber Actor(s) Targeting Operational Technology

CISA is increasingly aware of unsophisticated cyber actor(s) targeting ICS/SCADA systems within U.S. critical Infrastructure sectors (Oil and Natural Gas), specifically in Energy and Transportation Systems. Although these activities often include basic and elementary intrusion techniques, the presence of poor cyber hygiene and exposed assets can escalate these threats, leading to significant consequences such as defacement, configuration changes, operational disruptions and, in severe cases, physical damage. CISA strongly urges Critical Infrastructure Asset Owners and Operators to review the following fact sheet for detailed guidance on reducing the risk of potential intrusions:

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation.

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the Known Exploited Vulnerabilities Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.