CVE-2026-57968: Windows Subsystem for Linux (WSL2) Kernel Elevation of Privilege Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS 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

Category

Elevation of Privilege

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2026-Jul

Released

2026-07-14

EPSS Score

0.32% (percentile: 23.9%)

Description

Buffer over-read in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.

Affected Products (1)

Open Source Software

• Windows Subsystem for Linux (WSL2)

Security Updates (1)

• Release Notes

Acknowledgments

vurmusum, vurmusum

Revision History

• 2026-07-14: Information published.