PT-2026-58637 · Microsoft · Windows Subsystem For Linux

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-57973

NVD

CVSS v3.1

6.3

Medium

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally.

Fix

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

CVE-2026-57973

Affected Products

Windows Subsystem For Linux

References · 2

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57973 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-57973 · Security Note