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VulnerabilityPublished Updated

CVE-2025-59033: The Microsoft vulnerable driver block list is implemented as Windows Defender Application Control

Source GCVE Database

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Authoritative record:CVE-2025-59033· High 7.4

Not known to be exploited · CVSS 7.4 High.

Data as of 13 Nov 2026, 18:44 UTC

CVSS 3.1 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.

Sources agree

CVSS scores by source
CNA (mitre)CVSS 3.17.4
CISA-ADPCVSS 3.16.7
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Sep 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

AI-suggested

The vendor advises that the vulnerable driver blocklist is intended for use with HVCI. Systems without HVCI should use Windows App Control and apply a granular blocklist approach for proper enforcement.

Description

CVE-2025-59033 is a critical vulnerability in the Microsoft vulnerable driver block list implemented via Windows Defender Application Control (WDAC) policy. On Windows systems without hypervisor-protected code integrity (HVCI) enabled or supported, certain blocklist entries that include a 'FileAttribRef' qualifier fail to block vulnerable drivers. This affects Windows 10, Windows 11, and Windows Server 2016 and later systems lacking HVCI. The vendor notes that the blocklist is intended for use with HVCI, and systems without HVCI should use App Control with a granular blocklist approach.

References

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