CVE-2021-26863

HIGH

Windows 10 and Windows Server 2016/2019 - Elevation of Privilege via Win32k Race Condition

Title source: llm

Windows Win32k Elevation of Privilege Vulnerability

Core 2

Core References

Patch, Vendor Advisory x_refsource_misc

Exploit, Third Party Advisory x_refsource_misc

CVSS v3 7.0

EPSS 0.1223

EPSS Percentile 95.7%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-269

Status published

Products (9)

microsoft/windows_10 20h2

microsoft/windows_10 1803

microsoft/windows_10 1809

microsoft/windows_10 1909

microsoft/windows_10 2004

microsoft/windows_server_2016 20h2

microsoft/windows_server_2016 1909

microsoft/windows_server_2016 2004

microsoft/windows_server_2019

Published Mar 11, 2021

Tracked Since Feb 18, 2026