US CERT Current Activity

Update: Implementation Guidance for Emergency Directive on Cisco ASA and Firepower Device Vulnerabilities

Nov 12, 2025

CISA has released Emergency Cisco Directive 25-03 Implementation Guidance to assist federal agencies in addressing critical vulnerabilities in Cisco Adaptive Security Appliances (ASA) and Firepower devices. Emergency Directive 25-03: Identify and Mitigate Potential Compromise of Cisco Devices, issued on Sept. 25, identified known vulnerabilities CVE-2025-20333 and CVE-2025-20362, and mandated immediate action to mitigate risks. Threat actors continue to target these devices, posing significant risk to all organizations. The implementation guidance provides information on the minimum software versions that address these vulnerabilities and direct federal agencies to conduct corrective patching measures on devices that are not compliant with these requirements. CISA is aware of multiple organizations that believed they had applied the necessary updates but had not in fact updated to the minimum software version. CISA recommends all organizations verify the correct updates are applied. For agencies with ASA or Firepower devices not yet updated to the necessary software versions or devices that were updated after September 26, 2025, CISA recommends additional actions to mitigate against ongoing and new threat activity. CISA urges all agencies with ASAs and Firepower devices to follow this guidance. See Emergency Directive 25-03 Implementation Guidance and Temporary Risk Mitigation Guidance for Agencies in the Process of ED 25-03 Compliance for detailed recommendations and CISA’s RayDetect scanner to examine ASA core dumps for evidence of RayInitiator compromise.

CISA Adds Three Known Exploited Vulnerabilities to Catalog

Nov 12, 2025

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-9242 WatchGuard Firebox Out-of-Bounds Write Vulnerability CVE-2025-12480 Gladinet Triofox Improper Access Control Vulnerability CVE-2025-62215 Microsoft Windows Race Condition 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 KEV 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 KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

CISA Adds One Known Exploited Vulnerability to Catalog

Nov 10, 2025

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-21042 Samsung Mobile Devices Out-of-Bounds Write Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV 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 KEV 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 Four Industrial Control Systems Advisories

Nov 6, 2025

CISA released four Industrial Control Systems (ICS) Advisories. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-310-01 Advantech DeviceOn iEdge ICSA-25-310-02 Ubia Ubox ICSA-25-310-03 ABB FLXeon Controllers ICSA-25-282-01 Hitachi Energy Asset Suite (Update A) CISA encourages users and administrators to review newly released ICS Advisories for technical details and mitigations.

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