Oct 2025: Windows Authentication Elevation of Privilege Vulnerability
CVE-2025-59277 Published on October 14, 2025

Windows Authentication Elevation of Privilege Vulnerability
Improper validation of specified type of input in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.

Vendor Advisory NVD

Weakness Type

Improper Validation of Specified Type of Input

The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.

Products Associated with CVE-2025-59277

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2025-59277 are published in these products:

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

Microsoft Windows 10 1507

Microsoft Windows Server 2016

Microsoft Windows Server 2008 Sp2

Microsoft Windows Server 2008 R2

Microsoft Windows Server 2012

Microsoft Windows Server 2012 R2

Affected Versions

Microsoft Windows 10 Version 1507:

Version 10.0.10240.0 and below 10.0.10240.21161 is affected.

Microsoft Windows 10 Version 1607:

Version 10.0.14393.0 and below 10.0.14393.8519 is affected.

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 Server 2008 R2 Service Pack 1:

Version 6.1.7601.0 and below 6.1.7601.27974 is affected.

Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation):

Version 6.1.7601.0 and below 6.1.7601.27974 is affected.

Microsoft Windows Server 2008 Service Pack 2:

Version 6.0.6003.0 and below 6.0.6003.23571 is affected.

Microsoft Windows Server 2008 Service Pack 2 (Server Core installation):

Version 6.0.6003.0 and below 6.0.6003.23571 is affected.

Microsoft Windows Server 2012:

Version 6.2.9200.0 and below 6.2.9200.25722 is affected.

Microsoft Windows Server 2012 (Server Core installation):

Version 6.2.9200.0 and below 6.2.9200.25722 is affected.

Microsoft Windows Server 2012 R2:

Version 6.3.9600.0 and below 6.3.9600.22824 is affected.

Microsoft Windows Server 2012 R2 (Server Core installation):

Version 6.3.9600.0 and below 6.3.9600.22824 is affected.

Microsoft Windows Server 2016:

Version 10.0.14393.0 and below 10.0.14393.8519 is affected.

Microsoft Windows Server 2016 (Server Core installation):

Version 10.0.14393.0 and below 10.0.14393.8519 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

0.16%

Percentile

37.05%