CVE-2026-27911 PUBLISHED CVSS 7.800000190734863 HIGH

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate privileges locally.

Risk Scores

CVSS v3.1
7.800000190734863
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected Products

VendorProductVersions
MicrosoftWindows 11 Version 25H210.0.26200.0
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0
MicrosoftWindows 11 Version 24H210.0.26100.0
microsoftwindows_server_202510.0.26100.0, 10.0.26100.0
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0
MicrosoftWindows 11 version 26H110.0.28000.0
microsoftwindows_11_24H210.0.26100.0
MicrosoftWindows Server 201910.0.17763.0
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0
MicrosoftWindows 10 Version 180910.0.17763.0
microsoftwindows_11_26H110.0.28000.0
microsoftwindows_server_201610.0.14393.0, 10.0.14393.0
MicrosoftWindows Server 201610.0.14393.0
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0
MicrosoftWindows Server 202210.0.20348.0
MicrosoftWindows 11 Version 23H210.0.22631.0
microsoftwindows_server_23h210.0.25398.0
microsoftwindows_10_22H210.0.19045.0
MicrosoftWindows 10 Version 21H210.0.19044.0
microsoftwindows_server_201910.0.17763.0, 10.0.17763.0

…and 10 more

Timeline

References

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