Skip to content
MicrosoftCVE-2026-56187

Microsoft Windows MIDI Service Module: use after free

High7.0CVE-2026-56187 · Published Jul 14, 2026 · updated Jul 23, 2026

Use after free 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:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-416

More Microsoft advisories

All Microsoft
Advisory
Secret exfiltration vulnerability
HighJul 14
Workspace Trust Security Feature Bypass Vulnerability
HighJul 14
Remote Code Execution Vulnerability
HighJul 14
Microsoft .NET 8.0: unsafe deserialization
High7.8Jul 14
Microsoft .NET 8.0: code injection
High7.8Jul 14
Microsoft .NET 10.0: resource exhaustion
High7.5Jul 14

Critical advisories by email

Wednesdays: the week’s critical and high advisories in the AI and data stack, with the fixed versions. Only in weeks that have some.

Double opt-in. Unsubscribe any time.