CVE-2023-28274

Windows Win32k Elevation of Privilege Vulnerability

CVE-2023-28274 is fixed in 19 products on 1 platform, first by KB5025229, released April 11, 2023. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent

CVSS

7.8

Important

Exploitation

More likely

Vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0683

94th percentile

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 1809 for 32-bit Systems	17763.4252	KB5025229	Apr 11, 2023
Windows 10 Version 1809 for ARM64-based Systems	17763.4252	KB5025229	Apr 11, 2023
Windows 10 Version 1809 for x64-based Systems	17763.4252	KB5025229	Apr 11, 2023
Windows 10 Version 20H2 for 32-bit Systems		KB5025221	Apr 11, 2023
Windows 10 Version 20H2 for ARM64-based Systems		KB5025221	Apr 11, 2023
Windows 10 Version 21H2 for 32-bit Systems		KB5025221	Apr 11, 2023
Windows 10 Version 21H2 for ARM64-based Systems		KB5025221	Apr 11, 2023
Windows 10 Version 21H2 for x64-based Systems		KB5025221	Apr 11, 2023
Windows 10 Version 22H2 for 32-bit Systems		KB5025221	Apr 11, 2023
Windows 10 Version 22H2 for ARM64-based Systems		KB5025221	Apr 11, 2023
Windows 10 Version 22H2 for x64-based Systems		KB5025221	Apr 11, 2023
Windows 11 Version 22H2 for ARM64-based Systems	22621.1555	KB5025239	Apr 11, 2023
Windows 11 Version 22H2 for x64-based Systems	22621.1555	KB5025239	Apr 11, 2023
Windows 11 version 21H2 for ARM64-based Systems	22000.1817	KB5025224	Apr 11, 2023
Windows 11 version 21H2 for x64-based Systems	22000.1817	KB5025224	Apr 11, 2023
Windows Server 2019	17763.4252	KB5025229	Apr 11, 2023
Windows Server 2019 (Server Core installation)	17763.4252	KB5025229	Apr 11, 2023
Windows Server 2022	20348.1668	KB5025230	Apr 11, 2023
Windows Server 2022 (Server Core installation)	20348.1668	KB5025230	Apr 11, 2023

Details

Published
April 11, 2023
Weakness
Improper Input Validation
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28274

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