CVE-2025-26675

Windows Subsystem for Linux Elevation of Privilege Vulnerability

CVE-2025-26675 is fixed in 17 products on 1 platform, first by KB5055518, released April 8, 2025. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.8

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0060

48th percentile

<p>Out-of-bounds read in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 21H2 for 32-bit Systems		KB5055518	Apr 8, 2025
Windows 10 Version 21H2 for ARM64-based Systems		KB5055518	Apr 8, 2025
Windows 10 Version 21H2 for x64-based Systems		KB5055518	Apr 8, 2025
Windows 10 Version 22H2 for 32-bit Systems		KB5055518	Apr 8, 2025
Windows 10 Version 22H2 for ARM64-based Systems		KB5055518	Apr 8, 2025
Windows 10 Version 22H2 for x64-based Systems		KB5055518	Apr 8, 2025
Windows 11 Version 22H2 for ARM64-based Systems		KB5055528	Apr 8, 2025
Windows 11 Version 22H2 for x64-based Systems		KB5055528	Apr 8, 2025
Windows 11 Version 23H2 for ARM64-based Systems		KB5055528	Apr 8, 2025
Windows 11 Version 23H2 for x64-based Systems		KB5055528	Apr 8, 2025
Windows 11 Version 24H2 for ARM64-based Systems	26100.3775	KB5055523	Apr 8, 2025
Windows 11 Version 24H2 for x64-based Systems	26100.3775	KB5055523	Apr 8, 2025
Windows Server 2022	20348.3453	KB5055526	Apr 8, 2025
Windows Server 2022 (Server Core installation)	20348.3453	KB5055526	Apr 8, 2025
Windows Server 2022, 23H2 Edition (Server Core installation)	25398.1551	KB5055527	Apr 8, 2025
Windows Server 2025	26100.3775	KB5055523	Apr 8, 2025
Windows Server 2025 (Server Core installation)	26100.3775	KB5055523	Apr 8, 2025

Details

Published
April 8, 2025
Weakness
Out-of-bounds Read
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26675

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