Inclusion of Functionality from Untrusted Control Sphere in Microsoft Windows and Windows Server - CVE-2026-96038
Published: November 11, 2026
Vulnerability identifier: #VU165686
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-96038
CWE-ID: CWE-829
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to elevate privileges from Medium Integrity Level to Local Service.
The vulnerability exists due to inclusion of functionality from an untrusted control sphere in Windows Audio Service when incorporating untrusted functionality. A local user can exploit this trust boundary violation to gain Local Service privileges.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2026-96038
Install security update from vendor's website.
Microsoft Windows - addressed in versions 10 21H2 10.0.19044.7846, 10 22H2 10.0.19045.7846, 10 1809 10.0.17763.9487, 11 23H2 10.0.22631.7711, 11 24H2 10.0.26100.9911, 11 24H2 10.0.26100.9974, 11 25H2 10.0.26200.9911, 11 25H2 10.0.26200.9974, 11 26H1 10.0.28000.3501
Windows Server - addressed in versions 2019 10.0.17763.9487, 2022 10.0.20348.5870, 2025 10.0.26100.33730, 2025 10.0.26100.33822
Windows Server - addressed in versions 2019 10.0.17763.9487, 2022 10.0.20348.5870, 2025 10.0.26100.33730, 2025 10.0.26100.33822