CISA, along with the Federal Bureau of Investigation, Canadian Centre for Cyber Security, Royal Canadian Mounted Police, the Australian Cyber Security Centre’s Australian Signals Directorate, and the Australian Federal Police and National Cyber Security Centre, released an updated joint Cybersecurity Advisory on Scattered Spider—a cybercriminal group targeting commercial facilities sectors and subsectors. This advisory provides updated tactics, techniques, and procedures (TTPs) obtained through FBI investigations conducted through June 2025.

Scattered Spider threat actors have been known to use various ransomware variants in data extortion attacks, most recently including DragonForce ransomware. While Scattered Spider often changes TTPs to remain undetected, some TTPs remain consistent. These actors frequently use social engineering techniques such as phishing, push bombing, and subscriber identity module swap attacks to obtain credentials, install remote access tools, and bypass multi-factor authentication.

The Mitigations section of the Scattered Spider joint Cybersecurity Advisory offers critical infrastructure organizations and commercial facilities recommendations to fortify their defenses.

CISA released five Industrial Control Systems (ICS) advisories on July 29, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

• ICSA-24-158-04 Johnson Controls Software House iStar Pro Door Controller (Update A)
• ICSA-24-338-06 Fuji Electric Tellus Lite V-Simulator (Update A)
• ICSA-25-210-01 National Instruments LabVIEW
• ICSA-25-210-02 Samsung HVAC DMS
• ICSA-25-210-03 Delta Electronics DTN Soft 

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

CISA released Microsegmentation in Zero Trust, Part One: Introduction and Planning as part of its ongoing efforts to support Federal Civilian Executive Branch (FCEB) agencies implementing zero trust architectures (ZTAs). 

This guidance provides a high-level overview of microsegmentation, focusing on its key concepts, associated challenges and potential benefits, and includes recommended actions to modernize network security and advance zero trust principles.

Microsegmentation is a critical component of ZTA that reduces the attack surface, limits lateral movement, and enhances visibility for monitoring smaller, isolated groups of resources.

While the guidance focuses on FCEB references, its principles are applicable to any organization. As part of its Journey to Zero Trust series, CISA plans to release a subsequent technical guide to offer detailed implementation scenarios and technical considerations for implementation teams. Visit our Zero Trust webpage for more information and resources.

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 8.4
• ATTENTION: Low attack complexity
• Vendor: Delta Electronics
• Equipment: DTN Soft
• Vulnerability: Deserialization of Untrusted Data

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to use a specially crafted project file to execute arbitrary code.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following Delta Electronics products are affected:

• DTN Soft: Versions 2.1.0 and prior

3.2 Vulnerability Overview

3.2.1 DESERIALIZATION OF UNTRUSTED DATA CWE-502

The affected product is affected by a deserialization of untrusted data vulnerability, which could allow an attacker to use a specially crafted project file to execute arbitrary code.

CVE-2025-53416 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-53416. A base score of 8.4 has been calculated; the CVSS vector string is (AV:L/AC:L/AT:N/PR:N/UI:A/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

kimiya working with Trend Micro Zero Day Initiative reported this vulnerability to CISA.

4. MITIGATIONS

According to Delta Electronics, if a version of DTN Soft prior to v2.1.0 is installed, it should be updated to v2.1.0 or later. If DTM Soft is also installed, it should be updated to v1.6.0.0 (released on March 25, 2025) or later. The update can be obtained from Delta Electronics' Download Center.

For more information, please see Delta Electronics' advisory Delta-PCSA-2025-00009..

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:

• 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. This vulnerability is not exploitable remotely.

5. UPDATE HISTORY

• July 29, 2025: Initial Publication

Sherwood Russell, 35, of the District of Columbia, has been charged in an indictment, unsealed today in U.S. District Court, on a federal firearms charge as part of the “Make D.C. Safe and Beautiful” initiative.

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 7.1
• ATTENTION: Low attack complexity
• Vendor: National Instruments
• Equipment: LabVIEW
• Vulnerabilities: Improper Restriction of Operations within the Bounds of a Memory Buffer

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could lead to the execution of arbitrary code on affected installations of LabVIEW, which could result in invalid memory reads.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of LabVIEW are affected:

• LabVIEW: 2025 Q1 and prior versions

3.2 Vulnerability Overview

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

LabVIEW 2025 Q1 and prior versions are affected by an improper restriction of operations within the bounds of a memory buffer vulnerability, which may allow a local attacker to disclose information and execute arbitrary code remotely, resulting in invalid memory reads.

CVE-2025-2633 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-2633. A base score of 7.1 has been calculated; the CVSS vector string is (AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

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

LabVIEW 2024 Q3 and prior versions are affected by an improper restriction of operations within the bounds of a memory buffer vulnerability, which may allow a local attacker to disclose information and execute arbitrary code remotely, resulting in invalid memory reads.

CVE-2025-2634 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-2634. A base score of 7.1 has been calculated; the CVSS vector string is (AV:L/AC:L/AT:P/PR:N/UI:A/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: United States

3.4 RESEARCHER

Michael Heinzl reported these vulnerabilities to CISA.

4. MITIGATIONS

National Instruments has released the following patches for the affected products:

• For those affected by CVE-2025-2633 click here.
• For those affected by CVE-2025-2634 click here.

Please refer to the National Instruments advisory for further information.

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.

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. These vulnerabilities are not exploitable remotely.

5. UPDATE HISTORY

• July 29, 2025: Initial Publication

Kevin Hopkins, 39, a resident of the District of Columbia, pleaded guilty on July 25, 2025, in U.S. District Court, on a firearms charge. The plea, which comes as part of the "Make D.C. Safe Again" initiative, was announced by U.S. Attorney Jeanine Ferris Pirro.