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CVE-2026-85879

7.0 high SSVC exploitation: none Published
NVD · CVE.org

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

Fix

Microsoft's update · Important

  • Release Notes — Windows Subsystem for Linux (WSL2) · build 2.7.10

From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-29 · Exploitation Less Likely.

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 2

  1. StatusUndergoing Analysis → PublishedNVD modified 2026-10-19 19:39
  2. First seenCVSS 7.0NVD modified 2026-10-14 04:18

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1