High severity7.4NVD Advisory· Published Sep 8, 2025· Updated Apr 15, 2026
CVE-2025-59033
CVE-2025-59033
Description
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.
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References
3- learn.microsoft.com/en-us/windows/security/application-security/application-control/app-control-for-business/design/microsoft-recommended-driver-block-rulesnvd
- learn.microsoft.com/en-us/windows/security/hardware-security/enable-virtualization-based-protection-of-code-integritynvd
- x.com/JonnyJohnson_/status/1895103112924307727nvd
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