Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.
Product
Defender
Added to KEV
22 Apr 2026
Federal remediation due
6 May 2026
Known ransomware use
Yes
Page history
Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.