CISA Adds One Known Exploited Vulnerability to Catalog | HappeningNow.news

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CISA Adds One Known Exploited Vulnerability to Catalog

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

Source AI Summary Published March 27, 2026 Brief Under 1 min brief
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CISA added CVE‑2025‑53521, a remote code execution flaw in F5 BIG‑IP, to its Known Exploited Vulnerabilities (KEV) Catalog after confirming active exploitation. The vulnerability is a common attack vector that poses significant risk to federal enterprise systems. The KEV Catalog is maintained under Binding Operational Directive 22‑01, which requires Federal Civilian Executive Branch agencies to remediate listed CVEs by specified due dates. CISA urges all organizations to prioritize timely remediation of KEV Catalog vulnerabilities to reduce exposure to cyberattacks. The agency will continue to update the catalog with additional vulnerabilities that meet the criteria.

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