CVE-2026-54129

HIGH

Microsoft Windows 10 Version 1809 - Windows Hyper-V Elevation of Privilege Vulnerability

Title source: rule
STIX 2.1

Description

Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Windows Hyper-V Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54129

Scores

CVSS v3 7.0
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

Details

CWE
CWE-416
Status published
Products (11)
Microsoft/Windows 10 Version 1809 10.0.17763.0 - 10.0.17763.9020
Microsoft/Windows 10 Version 21H2 10.0.19044.0 - 10.0.19044.7548
Microsoft/Windows 10 Version 22H2 10.0.19045.0 - 10.0.19045.7548
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.8875
Microsoft/Windows 11 Version 25H2 10.0.26200.0 - 10.0.26200.8875
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.2269
Microsoft/Windows Server 2019 10.0.17763.0 - 10.0.17763.9020
Microsoft/Windows Server 2019 (Server Core installation) 10.0.17763.0 - 10.0.17763.9020
Microsoft/Windows Server 2022 10.0.20348.0 - 10.0.20348.5386
Microsoft/Windows Server 2025 10.0.26100.0 - 10.0.26100.33158
... and 1 more
Published Jul 14, 2026
Tracked Since Jul 14, 2026