CVE-2025-59033CWE-420

The Microsoft vulnerable driver block list is implemented as Windows Defender Application Control (WDAC) policy

High · published September 8, 2025

CVSS v3.1
7.4
EPSS
0%
Percentile
19.9
In the wild
Unconfirmed
What it is

The Microsoft vulnerable driver block list is implemented as Windows Defender Application Control (WDAC) policy. Entries that specify only the to-be-signed (TBS) part of the code signer certificate are properly blocked, but entries that specify the signing certificate's TBS hash along with a 'FileAttribRef' qualifier (such as file name or version) may not be blocked, whether hypervisor-protected code integrity (HVCI) is enabled or not. NOTE: The vendor disputes this CVE ID assignment and states that the driver blocklist is intended for use with HVCI.

The record
Technical detail
CVSS v3.1
7.4 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00285 · 19.9th percentile
Weakness
CWE-420 · Unprotected Alternate Channel
Published
2025-09-08T00:00Z
EPSS history
Timeline
  • 08 SEP 00:00Z
    The Microsoft vulnerable driver block list is implemented as Windows Defender Application Control (WDAC) policy
    cvelistv5