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HIGH
Vulnerabilities
Microsoft Defender CVE-2026-41091 Privilege Escalation Exploited
Microsoft warns of active exploitation of CVE-2026-41091 in Defender, a privilege escalation flaw allowing attackers to gain SYSTEM privileges on Windows.
Runtime Rebel Intel
3 min read·May 21, 2026
VU
HIGH
Vulnerabilities
CISA KEV Update: New Microsoft Defender and Legacy Flaws Exploited
CISA adds seven vulnerabilities, including CVE-2026-41091 and CVE-2026-45498, to the Known Exploited Vulnerabilities catalog. Patch now to prevent compromise.
Runtime Rebel Intel
3 min read·May 21, 2026