CVE-2026-85879: microsoft windows_subsystem_for_linux

CVSS 7.0 (high) · published 2026-10-13

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

Affected products (NVD): microsoft windows_subsystem_for_linux

Fixed in (NVD): 2.7.10

Weakness: CWE-367

Source: NVD CVE-2026-85879

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85879

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