MSRC-CVE-2026-96206 — Windows Subsystem for Linux Information Disclosure Vulnerability

Summary

Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is uninitialized stack memory.

Security updates
3.0.1 — https://github.com/microsoft/WSL/releases/tag/3.0.1

Vulnerabilities 1

Medium 6.5

CVE-2026-96206

Windows Subsystem for Linux Information Disclosure Vulnerability

Use of uninitialized resource in Windows Subsystem for Linux allows an authorized attacker to disclose information locally.

Microsoft Windows Subsystem for Linux (WSL2) Linux Windows

Oct 13, 2026

Revision history

2026-10-13 #1
Information published.

References

CVE-2026-96206 Windows Subsystem for Linux Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96206
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss