Microsoft Defender Insufficient Granularity of Access Control Vulnerability

Microsoft Defender

Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally. Added to CISA KEV on 2026-04-22 (federal deadline 2026-05-06).

First seen: 22 Apr 2026
Last update: 22 Apr 2026, 12:00 UTC
Identifiers: CVE-2026-33825
Source: CISA KEV
On the menu as: Windows

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Microsoft Defender Insufficient Granularity of Access Control Vulnerability
Severity: critical, exploited in the wild. Patch status: patched.
Affected: Microsoft Defender
Ids: CVE-2026-33825

Microsoft Defender contains an insufficient granularity of access control vulnerability that could allow an authorized attacker to escalate privileges locally. Added to CISA KEV on 2026-04-22 (federal deadline 2026-05-06).

## Steps
1. This touches infrastructure (windows). Look in terraform, ansible, cloud-init, Dockerfiles and docs for the product and version we run. If it isn't in the repo, say so and list what a human should check on the box.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-33825") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33825 https://nvd.nist.gov/vuln/detail/CVE-2026-33825
https://pwned.coffee/i/microsoft-defender-insufficient-granularity-of-access-co-cve-2026-33825

Sources

Totalone very hot coffee