Use of uninitialized resource in Microsoft Windows and Windows Server - CVE-2026-26175
Published: April 14, 2026
Vulnerability identifier: #VU126015
CSH Severity: Low
CVSS v4: 5.1 [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]
CVE-ID: CVE-2026-26175
CWE-ID: CWE-908
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2026-26175
Install updates from vendor's website.
Microsoft Windows - addressed in versions 10 21H2 10.0.19044.7184, 10 22H2 10.0.19045.7184, 10 1607 10.0.14393.9060, 10 1809 10.0.17763.8644, 11 23H2 10.0.22631.6936, 11 24H2 10.0.26100.32690
Windows Server - addressed in versions 2012 R2 6.3.9600.23132, 2016 10.0.14393.9060, 2019 10.0.17763.8644, 2022 23H2 10.0.25398.2274, 2022 10.0.20348.5020, 2025 10.0.26100.32690
Windows Server - addressed in versions 2012 R2 6.3.9600.23132, 2016 10.0.14393.9060, 2019 10.0.17763.8644, 2022 23H2 10.0.25398.2274, 2022 10.0.20348.5020, 2025 10.0.26100.32690