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MicrosoftCVE-2026-50342

Microsoft Windows MIDI Service Module: improper access control

High8.8CVE-2026-50342 · Published Jul 14, 2026 · updated Jul 23, 2026

Improper access control in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

Microsoft advisory

Affected versions

PackageAffectedFixed in
Windows 11 Version 24H2
Product
>= 10.0.26100.0, < 10.0.26100.887510.0.26100.8875
Windows 11 Version 25H2
Product
>= 10.0.26200.0, < 10.0.26200.887510.0.26200.8875
Windows 11 version 26H1
Product
>= 10.0.28000.0, < 10.0.28000.252510.0.28000.2525
Details and references
CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-284

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