CVE-2026-33825 — Microsoft Defender: Microsoft Defender Insufficient Granularity of Access Control Vulnerability
CVE-2026-33825 — Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally.
What This Means For You
- CISA has confirmed active exploitation — immediate patching required.
- Added to CISA KEV catalog — federal agencies must remediate by 2026-05-06.
Related ATT&CK Techniques
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-33825 | Privilege Escalation | Microsoft Defender |
| CVE-2026-33825 | Auth Bypass | insufficient granularity of access control |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | CISA |
| Channel | CISA KEV |
| Channel ID | cisa-kev |
| Message ID | 202633825 |
| Published | April 22, 2026 at 15:00 UTC |
| Original Link | https://msrc.microsoft.com/update-guide/vulnerability/CVE... |
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