Vulnerability · Published Apr 8, 2025 · Assigned by microsoft
CVE-2025-26675Windows Subsystem for Linux Elevation of Privilege Vulnerability
High 7.8
In plain English
A high-severity out-of-bounds read in Windows 10 Version 21H2 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.6%top 51.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Out-of-bounds read in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | wsl | no fix listed | UBUNTU-CVE-2025-26675 |
| Ubuntu:24.04:LTS | wsl | no fix listed | UBUNTU-CVE-2025-26675 |
| Ubuntu:25.10 | wsl | no fix listed | UBUNTU-CVE-2025-26675 |
| Ubuntu:26.04:LTS | wsl | no fix listed | UBUNTU-CVE-2025-26675 |
| Ubuntu:26.10 | wsl | no fix listed | UBUNTU-CVE-2025-26675 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 – before 10.0.19044.5737 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – before 10.0.19045.5737 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – before 10.0.22621.5189 |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 – before 10.0.22631.5189 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 – before 10.0.22631.5189 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – before 10.0.26100.3775 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – before 10.0.20348.3453 |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 – before 10.0.25398.1551 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – before 10.0.26100.3775 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – before 10.0.26100.3775 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Windows Subsystem for Linux Elevation of Privilege Vulnerability vendor-advisory, patch