CVE-2026-78464
Windows MIDI Service Module Elevation of Privileges vulnerability
MSRC advisory September 8, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-78464
- CWE
- CWE-367
- Affected products
- Windows MIDI Service Module Elevation of Privileges · Microsoft Windows MIDI Service Module Elevation of Privileges · Microsoft
What happened
<p>Time-of-check time-of-use (toctou) race condition in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.</p>
What it means for your business
Windows MIDI Service Module Elevation of Privileges vulnerability (CVE-2026-78464) was added to Microsoft’s security update guidance. <p>Time-of-check time-of-use (toctou) race condition in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.</p> If you need help checking exposure, call (864) 335-9223.
CVSS score
7.0 (High)
EPSS probability
0.20%
Sources
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