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CVE-2026-57968Important

Windows Subsystem for Linux (WSL2) Kernel Elevation of Privilege Vulnerability

MSRC advisory NVD CVE.org

Assessment

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

Severity
Important
CVSS base score
7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Impact
Elevation of Privilege
EPSS, next 30 days
0.3%Higher than 24% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
Exploitability
Exploitation Less Likely
Publicly disclosed
No
Customer action
Required: apply the update
Component
Windows Subsystem for Linux
Weakness
CWE-126: Buffer Over-read
Issued by
Microsoft
Published
14 Jul 2026 · July 2026
Last revised
14 Jul 2026

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Open Source Software
1 affected product
  • Windows Subsystem for Linux (WSL2)
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