Vulnerability · Published Jul 14, 2026 · Assigned by microsoft
CVE-2026-57968Windows Subsystem for Linux (WSL2) Kernel Elevation of Privilege Vulnerability
High 7.8
In plain English
A high-severity security flaw in Windows Subsystem for Linux (WSL2) from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.3%top 73.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Buffer over-read in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Subsystem for Linux (WSL2) | 5.0.0.0 – before 2.7.8 |
Weakness: CWE-126 · 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 (WSL2) Kernel Elevation of Privilege Vulnerability vendor-advisory, patch