CVE-2026-57973

Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability

Published Jul 14, 2026 CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed
Description
Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally.
Title Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability
First Time appeared Microsoft
Microsoft windows Subsystem For Linux
Weaknesses CWE-367
CPEs cpe:2.3:a:microsoft:windows_subsystem_for_linux:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows Subsystem For Linux
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 10:40 PM
Reserved
Jun 26, 2026, 5:45 PM
Status
Analyzed
Published
Jul 14, 2026, 6:18 PM
Modified
Oct 24, 2026, 9:10 PM