CVE-2021-26863

Windows Win32k Elevation of Privilege Vulnerability

State: Published
Severity: 7.0 High
Published: Mar 11, 2021
Updated: Aug 19, 2026
Reserved: Feb 8, 2021

Description

Windows Win32k Elevation of Privilege Vulnerability

Scores

CVSS	Score	Vector	Source
3.1	7.0 High	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	microsoft

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
Windows 10 Version 1803Microsoft	10.0.0 to before 10.0.17134.2087Affected
Windows 10 Version 1809Microsoft	10.0.17763.0 to before 10.0.17763.1817Affected
Windows 10 Version 1809Microsoft	10.0.0 to before 10.0.17763.1817Affected
Windows 10 Version 1909Microsoft	10.0.0 to before 10.0.18363.1440Affected
Windows 10 Version 2004Microsoft	10.0.0 to before 10.0.19043.867Affected
Windows 10 Version 20H2Microsoft	10.0.0 to before 10.0.19043.867Affected
Windows Server 2019Microsoft	10.0.17763.0 to before 10.0.17763.1817Affected
Windows Server 2019 (Server Core installation)Microsoft	10.0.17763.0 to before 10.0.17763.1817Affected
Windows Server version 2004Microsoft	10.0.0 to before 10.0.19043.867Affected
Windows Server version 20H2Microsoft	10.0.0 to before 10.0.19043.867Affected
Windows Server, version 1909 (Server Core installation)Microsoft	10.0.0 to before 10.0.18363.1440Affected

References

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