Use of uninitialized resource in Windows and Windows Server - CVE-2026-26175
Published: April 14, 2026
Vulnerability identifier: #VU126015
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-26175
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 attacker to bypass certain security restrictions.
The vulnerability exists due to usage of uninitialized resources in Windows Boot Manager. An attacker with physical access 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-2026-26175
Install updates from vendor's website.