Key Findings CISA added seven vulnerabilities to its Known Exploited Vulnerabilities catalog, including Microsoft Defender flaws currently under active exploitation Two Microsoft Defender vulnerabilities (CVE-2026-41091 and CVE-2026-45498) are being actively exploited in the wild CVE-2026-41091 allows attackers to escalate privileges to SYSTEM level with a CVSS score of 7.8 Five additional legacy vulnerabilities from 2008-2010 were added to the catalog, affecting Windows, Int
