CVE-2026-88079

7.0High

Published 13 Oct 2026 · NVD status: Analyzed · AI triage by gemini-3.8-flash

7.0High

Attack vector: Local
Complexity: High
Privileges needed: Low
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-476

Impact

A local attacker with an existing account can elevate privileges to system level. They need prior local access or credentials on the target host to trigger the flaw.

Root cause

A null pointer dereference occurs in the Windows MIDI Service Module during processing.

Affected systems

Versions not listed — check the vendor advisory.

CVSS v3.1 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Fix & remediation

Install the security update from Microsoft's patch guide; if patching cannot be done immediately, stop and disable the Windows MIDI Service (midisrv) to eliminate exposure.

shell

$ Stop-Service -Name midisrv -Force; Set-Service -Name midisrv -StartupType Disabled

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

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

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88079PatchVendor Advisory

Source: nvd.nist.gov/vuln/detail/CVE-2026-88079