CISA Adds Two Known Exploited Vulnerabilities to Catalog
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 re
Read at CISA Cybersecurity Advisories
- Vendor
- Linux kernel
- Product
- Linux kernel
- Exploitation
- observed in the wild
- Exposure class
- Operating system
Why it ranks 58 (High)
- Exploitation observed in the wild
- Product class: operating system
- Widely deployed vendor product (Linux kernel)
- Covered by 3 independent sources
- Government advisory
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- CISA Cybersecurity Advisories (cisa.gov)
- CVE-2025-39964 on this site · NVD · CVE.org · Vulnpedia
- CVE-2026-53266 on this site · NVD · CVE.org · Vulnpedia
Related coverage
Other items that share a CVE or were clustered with this one.