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MEDIUM · 5.5

CVE-2025-21340

Windows Virtualization-Based Security (VBS) Security Feature Bypass Vulnerability

Vulnerability Description

Windows Virtualization-Based Security (VBS) Security Feature Bypass Vulnerability

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
MicrosoftWindows 10 1809< 10.0.17763.6775
MicrosoftWindows 10 21H2< 10.0.19044.5371
MicrosoftWindows 10 22H2< 10.0.19045.5371
MicrosoftWindows 11 22H2< 10.0.22621.4751
MicrosoftWindows 11 23H2< 10.0.22631.4751
MicrosoftWindows 11 24H2< 10.0.26100.2894
MicrosoftWindows Server 2019< 10.0.17763.6775
MicrosoftWindows Server 2022< 10.0.20348.3091
MicrosoftWindows Server 2022 23H2< 10.0.25398.1369
MicrosoftWindows Server 2025< 10.0.26100.2894

Related Weaknesses (CWE)

CWE-284

References

FAQ

What is CVE-2025-21340?

CVE-2025-21340 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Windows Virtualization-Based Security (VBS) Security Feature Bypass Vulnerability

How severe is CVE-2025-21340?

CVE-2025-21340 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-21340?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10 1809, Microsoft Windows 10 21H2, Microsoft Windows 10 22H2, Microsoft Windows 11 22H2, Microsoft Windows 11 23H2.