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

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Wed, 09 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 08 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description Time-of-check time-of-use (toctou) race condition in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
Title Windows MIDI Service Module Elevation of Privileges Vulnerability
First Time appeared Microsoft
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Weaknesses CWE-367
CPEs cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*
Vendors & Products Microsoft
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-09-09T21:35:29.357Z

Reserved: 2026-08-24T16:21:50.287Z

Link: CVE-2026-78464

cve-icon Vulnrichment

Updated: 2026-09-09T09:53:25.780Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-09-08T18:20:44.930

Modified: 2026-09-09T10:21:40.527

Link: CVE-2026-78464

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-09T02:15:02Z

Weaknesses