Status: UPDATED | Advisory ID: CVE-2026-69440
| CVE | CVE-2026-69440 |
| CVSS Score / Version | 7.0 (High) / CVSS v3.1 |
| Updated | 2026-09-25 |
| CVSS Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is local; attack complexity is high; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | see table below |
| Classified as | CWE-367 (Time-of-check Time-of-use (TOCTOU) Race Condition) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Microsoft | Windows 11 (version 24H2) | ||
| Microsoft | Windows 11 (version 25H2) | ||
| Microsoft | Windows 11 (version 26H1) | ||
| Microsoft | Windows 11 Version 24H2 | ||
| Microsoft | Windows 11 Version 25H2 | ||
| Microsoft | Windows 11 version 26H1 |
| Subsystems | Core Infrastructure, EWS Workstation Delivery/Virtualization |
| Sectors | All Sectors |
Time-of-check time-of-use (toctou) race condition in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
Monitor Microsoft's web page for any future patch releases. See vendor advisory link below.