CISA Adds One Known Exploited Vulnerability to Catalog

Summary

CISA has added CVE-2026-5281, a Google Chrome use-after-free vulnerability, to its Known Exploited Vulnerabilities (KEV) Catalog following evidence of active exploitation in the wild. The addition triggers remediation requirements for Federal Civilian Executive Branch agencies under Binding Operational Directive (BOD) 22-01. CISA recommends all organizations prioritize patching this vulnerability as part of their vulnerability management practice.

Full text

Alert CISA Adds One Known Exploited Vulnerability to Catalog Release DateApril 01, 2026 CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-5281 Google Dawn Use-After-Free 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. This product is provided subject to this Notification and this Privacy & Use policy. Please share your thoughts We recently updated our anonymous product survey; we welcome your feedback.

Indicators of Compromise

• cve — CVE-2026-5281