CVE-2026-88079

Windows MIDI Service Module Elevation of Privileges Vulnerability

CVE-2026-88079 is fixed in 8 products on 1 platform, first by KB5127648, released October 13, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.0

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0028

20th percentile

<p>Null pointer dereference in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 11 Version 24H2 for ARM64-based Systems		KB5127648	Oct 13, 2026
Windows 11 Version 24H2 for x64-based Systems		KB5127648	Oct 13, 2026
Windows 11 Version 25H2 for ARM64-based Systems		KB5127648	Oct 13, 2026
Windows 11 Version 25H2 for x64-based Systems		KB5127648	Oct 13, 2026
Windows 11 Version 26H1 for ARM64-based Systems	28000.3231	KB5127646	Oct 13, 2026
Windows 11 Version 26H2 for ARM64-based Systems		KB5127648	Oct 13, 2026
Windows 11 Version 26H2 for x64-based Systems		KB5127648	Oct 13, 2026
Windows 11 version 26H1 for x64-based Systems	28000.3231	KB5127646	Oct 13, 2026

Details

Published
October 13, 2026
Weakness
NULL Pointer Dereference
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88079

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