Oct 2025: Windows Kernel Information Disclosure Vulnerability
CVE-2025-55679 Published on October 14, 2025

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

Vendor Advisory NVD

Weakness Types

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.

What is an Information Disclosure Vulnerability?

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

CVE-2025-55679 has been classified to as an Information Disclosure vulnerability or weakness.

Products Associated with CVE-2025-55679

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Microsoft Windows 11 2h2

Microsoft Windows 10

Microsoft Windows Server 2019

Microsoft Windows Server 2022

Microsoft Windows 11

Microsoft Windows Server 2025

Microsoft Windows 11 23h2

Microsoft Windows Server 23h2

Microsoft Windows 11 24h2

Affected Versions

Microsoft Windows 10 Version 1809:

Version 10.0.17763.0 and below 10.0.17763.7919 is affected.

Microsoft Windows 10 Version 21H2:

Version 10.0.19044.0 and below 10.0.19044.6456 is affected.

Microsoft Windows 10 Version 22H2:

Version 10.0.19045.0 and below 10.0.19045.6456 is affected.

Microsoft Windows 11 version 22H2:

Version 10.0.22621.0 and below 10.0.22621.6060 is affected.

Microsoft Windows 11 version 22H3:

Version 10.0.22631.0 and below 10.0.22631.6060 is affected.

Microsoft Windows 11 Version 23H2:

Version 10.0.22631.0 and below 10.0.22631.6060 is affected.

Microsoft Windows 11 Version 24H2:

Version 10.0.26100.0 and below 10.0.26100.6899 is affected.

Microsoft Windows 11 Version 25H2:

Version 10.0.26200.0 and below 10.0.26200.6899 is affected.

Microsoft Windows Server 2019:

Version 10.0.17763.0 and below 10.0.17763.7919 is affected.

Microsoft Windows Server 2019 (Server Core installation):

Version 10.0.17763.0 and below 10.0.17763.7919 is affected.

Microsoft Windows Server 2022:

Version 10.0.20348.0 and below 10.0.20348.4294 is affected.

Microsoft Windows Server 2022, 23H2 Edition (Server Core installation):

Version 10.0.25398.0 and below 10.0.25398.1913 is affected.

Microsoft Windows Server 2025:

Version 10.0.26100.0 and below 10.0.26100.6899 is affected.

Microsoft Windows Server 2025 (Server Core installation):

Version 10.0.26100.0 and below 10.0.26100.6899 is affected.

Exploit Probability

EPSS

0.22%

Percentile

44.03%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.