Use of uninitialized resource in Windows and Windows Server - CVE-2026-20962
Published: January 13, 2026
Vulnerability identifier: #VU121228
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-20962
CWE-ID: CWE-908
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a local user to bypass certain security restrictions.
The vulnerability exists due to usage of uninitialized resources in Dynamic Root of Trust for Measurement (DRTM). A local administrator can pass specially crafted data to the application, trigger uninitialized usage of resources and gain access to sensitive information on the system.
How to mitigate CVE-2026-20962
Install updates from vendor's website.