CVE-2025-21340

Published: Jan 14, 2025Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 1.8 / Impact: 3.6

Source: secure@microsoft.com (Secondary)

Description

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

Affected (11)

Products: Microsoft: Windows 10 1809, Windows 10 21h2, Windows 10 22h2, Windows 11 22h2, Windows 11 23h2, Windows 11 24h2, Windows Server 2019, Windows Server 2022, Windows Server 2022 23h2, Windows Server 2025

10 products

Windows 10 1809

Windows 10 21h2

Windows 10 22h2

Windows 11 22h2

Windows 11 23h2

Windows 11 24h2

Windows Server 2019

Windows Server 2022

Windows Server 2022 23h2

Windows Server 2025

Configuration A

11 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 10 1809	version < 10.0.17763.6775
Microsoft Windows 10 1809	version < 10.0.17763.6775
Microsoft Windows 10 21h2	version < 10.0.19044.5371
Microsoft Windows 10 22h2	version < 10.0.19045.5371
Microsoft Windows 11 22h2	version < 10.0.22621.4751
Microsoft Windows 11 23h2	version < 10.0.22631.4751
Microsoft Windows 11 24h2	version < 10.0.26100.2894
Microsoft Windows Server 2019	version < 10.0.17763.6775
Microsoft Windows Server 2022	version < 10.0.20348.3091
Microsoft Windows Server 2022 23h2	version < 10.0.25398.1369
Microsoft Windows Server 2025	version < 10.0.26100.2894

Related CWEs

Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21340

Source: secure@microsoft.com

PatchVendor Advisory

Timeline

No history available yet.