CISA Adds Two Known Exploited Vulnerabilities to Catalog
Updated under an hour ago ()
CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-39964 Linux Kernel Race Condition Vulnerability CVE-2026-53266 Linux Kernel Out-of-Bounds Write Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all…
- Tags
- CISA, KEV
- Related exam domains
- CISSP 6: Security Assessment and Testing; CISSP 7: Security Operations; CISM 2: Information Security Risk Management; CISM 3: Information Security Program
- Source record id
- /node/25513
- First seen by InfoSec Signals
- Sep 23, 2026
Source: CISA cybersecurity advisories, Cybersecurity and Infrastructure Security Agency about this source more from it
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