CISA Adds One Known Exploited security flaw to Catalog

What happened

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities .

CVE-2026-86950 (the public catalogue number for a specific software flaw) Apple Multiple Products 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) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies.

BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.