Windows 11 Version 24H2 vulnerability

Time-of-check time-of-use (toctou) race condition in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

Published 8 Sep 2026Updated 25 Sep 20261 sources
CVSS 7.0

What happened

Time-of-check time-of-use (toctou) race condition in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

Affected versions

Windows 11 Version 24H2: 10.0.26100.0 through before 10.0.26100.9445 (custom); 10.0.26200.0 through before 10.0.26200.9445 (custom); 10.0.28000.0 through before 10.0.28000.2954 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.