Vulnerability · NVD
CVE-2026-40402
CRITICAL 9.3
Vendor bulletin scale — NVD CVSS pending
Windows Hyper-V Elevation of Privilege Vulnerability
EPSS
0.33%
exploit very unlikely
percentile 25.9%
OS versions that fix this CVE
This CVE is resolved by the following OS security releases. Update the OS to at least the listed version.
- Windows Server 2022 Fixed in 10.0.20348.5139
- Windows 11 23H2 · 2023-H2 Fixed in 10.0.22631.7219