CVE-2026-33825
KEV · RansomwareMicrosoft Defender Insufficient Granularity of Access Control Vulnerability
View CVE record →- Vendor / Project
- Microsoft
- Product
- Defender
- Date added
- Apr 22, 2026
- Due date
- May 6, 2026
- Known ransomware use
- Known
- CWEs
- CWE-1220
Description
Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.