CVE-2025-55679

Published: Oct 14, 2025Modified: Oct 24, 2025

4.7

Vector

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

Exploitability: 1.0 / Impact: 3.6

Source: NVD

Description

Improper input validation in Windows Kernel allows an unauthorized attacker to disclose information locally.

Affected (11)

Products: Microsoft: Windows 10 1809, Windows 10 21h2, Windows 10 22h2, Windows 11 22h2, Windows 11 23h2, Windows 11 24h2, Windows 11 25h2, Windows Server 2019, Windows Server 2022, Windows Server 2022 23h2, Windows Server 2025

11 products

Windows 10 1809

Windows 10 21h2

Windows 10 22h2

Windows 11 22h2

Windows 11 23h2

Windows 11 24h2

Windows 11 25h2

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	Before 10.0.17763.7919
Microsoft Windows 10 21h2	Before 10.0.19044.6456
Microsoft Windows 10 22h2	Before 10.0.19045.6456
Microsoft Windows 11 22h2	Before 10.0.22621.6060
Microsoft Windows 11 23h2	Before 10.0.22631.6060
Microsoft Windows 11 24h2	Before 10.0.26100.6899
Microsoft Windows 11 25h2	Before 10.0.26200.6899
Microsoft Windows Server 2019	Before 10.0.17763.7919
Microsoft Windows Server 2022	Before 10.0.20348.4294
Microsoft Windows Server 2022 23h2	Before 10.0.25398.1913
Microsoft Windows Server 2025	Before 10.0.26100.6899

Related CWEs

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55679

Source: secure@microsoft.com

Vendor Advisory

Timeline

No history available yet.