HIGHCVE-2026-25170Published Modified CNA microsoft
CVE-2026-25170: Windows Hyper-V Elevation of Privilege Vulnerability
Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
Metrics
- CVSS v3.1
- 7.0
- Severity
- HIGH
- Fixed in
- 10.0.20348.4893
- Affected Products
- 9
Fix available
10.0.20348.489310.0.22631.678310.0.25398.220710.0.26100.803710.0.26100.3252210.0.26200.803710.0.28000.1719
Patch commits
Affected packages
- Microsoft / Windows 11 version 22H3< 10.0.22631.6783 (from 10.0.22631.0)
- Microsoft / Windows 11 Version 23H2< 10.0.22631.6783 (from 10.0.22631.0)
- Microsoft / Windows 11 Version 24H2< 10.0.26100.8037 (from 10.0.26100.0)
- Microsoft / Windows 11 Version 25H2< 10.0.26200.8037 (from 10.0.26200.0)
- Microsoft / Windows 11 version 26H1< 10.0.28000.1719 (from 10.0.28000.0)
- Microsoft / Windows Server 2022< 10.0.20348.4893 (from 10.0.20348.0)
- Microsoft / Windows Server 2022, 23H2 Edition (Server Core installation)< 10.0.25398.2207 (from 10.0.25398.0)
- Microsoft / Windows Server 2025< 10.0.26100.32522 (from 10.0.26100.0)
- Microsoft / Windows Server 2025 (Server Core installation)< 10.0.26100.32522 (from 10.0.26100.0)
CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C