Nov 2026: Windows Audio Service Elevation of Privilege Vulnerability
CVE-2026-121671 Published on November 10, 2026

Windows Audio Service Elevation of Privilege Vulnerability
Use after free in Windows Audio Service allows an authorized attacker to elevate privileges locally.

Vendor Advisory NVD

Weakness Type

What is a Dangling pointer Vulnerability?

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

CVE-2026-121671 has been classified to as a Dangling pointer vulnerability or weakness.

Products Associated with CVE-2026-121671

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Microsoft Windows 10

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Microsoft Windows Server 2022

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Microsoft Windows 11 23h2

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Microsoft Windows 11 24h2

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Microsoft Windows 11 25h2

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Microsoft Windows 11 Version 26h2 Arm64 Based Systems

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Microsoft Windows Server 2025

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Microsoft Windows 11 26h1

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Affected Versions

• Version 10.0.19044.0 and below 10.0.19044.7846 is affected.

• Version 10.0.19045.0 and below 10.0.19045.7846 is affected.

• Version 10.0.22631.0 and below 10.0.22631.7711 is affected.

• Version 10.0.22631.0 and below 10.0.22631.7711 is affected.

• Version 10.0.26100.0 and below 10.0.26100.9974 is affected.

• Version 10.0.26200.0 and below 10.0.26200.9974 is affected.

• Version 10.0.28000.0 and below 10.0.28000.3501 is affected.

• Version 10.0.26300.0 and below 10.0.26300.9974 is affected.

• Version 10.0.20348.0 and below 10.0.20348.5870 is affected.

• Version 10.0.26100.0 and below 10.0.26100.33822 is affected.

• Version 10.0.26100.0 and below 10.0.26100.33822 is affected.