Description
Out-of-bounds read in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 – < 10.0.19044.5737 | 10.0.19044.5737 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – < 10.0.19045.5737 | 10.0.19045.5737 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – < 10.0.22621.5189 | 10.0.22621.5189 |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 – < 10.0.22631.5189 | 10.0.22631.5189 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 – < 10.0.22631.5189 | 10.0.22631.5189 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – < 10.0.26100.3775 | 10.0.26100.3775 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – < 10.0.20348.3453 | 10.0.20348.3453 |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 – < 10.0.25398.1551 | 10.0.25398.1551 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – < 10.0.26100.3775 | 10.0.26100.3775 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – < 10.0.26100.3775 | 10.0.26100.3775 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | wsl | No fix yet | — |
| Ubuntu 26.04 LTS | wsl | No fix yet | — |
| Ubuntu 25.10 | wsl | No fix yet | — |
| Ubuntu 24.04 LTS | wsl | No fix yet | — |
| Ubuntu 22.04 LTS | wsl | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | wsl | No fix yet | — |
| Ubuntu 18.04 LTS | wsl | No fix yet | — |
| Ubuntu 16.04 LTS | wsl | No fix yet | — |
Advisories 3
- WID-SEC-2025-0744 Microsoft Windows: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2025
- NCSC-2025-0112 Kwetsbaarheden verholpen in Microsoft Windows NCSC-NL (Netherlands) · Apr 8, 2025
- MSRC-CVE-2025-26675 Windows Subsystem for Linux Elevation of Privilege Vulnerability Microsoft Security Response Center · Apr 8, 2025
References
- Windows Subsystem for Linux Elevation of Privilege Vulnerability vendor-advisory patch