Insufficient Granularity of Access Control in Windows Defender antimalware platform - CVE-2026-33825

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Main Vulnerability Database Vulnerabilities #VU126208

Insufficient Granularity of Access Control in Windows Defender antimalware platform - CVE-2026-33825

Published: April 15, 2026 / Updated: April 23, 2026


Vulnerability identifier: #VU126208
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2026-33825
CWE-ID: CWE-1220
Exploitation vector: Local access
Exploit availability: The vulnerability is being exploited in the wild
Vendor: Microsoft
Affected software:
Windows Defender antimalware platform

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the target system.

The vulnerability exists due to insufficient granularity of access control in Microsoft Defender. A local user can gain elevated privileges on the system.


How to mitigate CVE-2026-33825

Install updates from vendor's website.

Sources