CVE-2023-21755

Windows Kernel Elevation of Privilege Vulnerability

CVE-2023-21755 is fixed in 15 products on 1 platform, first by KB5022286, released January 10, 2023. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.8

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0051

43rd percentile

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 1809 for 32-bit Systems	17763.3887	KB5022286	Jan 10, 2023
Windows 10 Version 1809 for ARM64-based Systems	17763.3887	KB5022286	Jan 10, 2023
Windows 10 Version 1809 for x64-based Systems	17763.3887	KB5022286	Jan 10, 2023
Windows 10 Version 20H2 for 32-bit Systems		KB5022282	Jan 10, 2023
Windows 10 Version 20H2 for ARM64-based Systems		KB5022282	Jan 10, 2023
Windows 10 Version 21H2 for 32-bit Systems		KB5022282	Jan 10, 2023
Windows 10 Version 21H2 for ARM64-based Systems		KB5022282	Jan 10, 2023
Windows 10 Version 21H2 for x64-based Systems		KB5022282	Jan 10, 2023
Windows 10 Version 22H2 for 32-bit Systems		KB5022282	Jan 10, 2023
Windows 10 Version 22H2 for ARM64-based Systems		KB5022282	Jan 10, 2023
Windows 10 Version 22H2 for x64-based Systems		KB5022282	Jan 10, 2023
Windows 11 Version 22H2 for ARM64-based Systems	22621.1105	KB5022303	Jan 10, 2023
Windows 11 Version 22H2 for x64-based Systems	22621.1105	KB5022303	Jan 10, 2023
Windows 11 version 21H2 for ARM64-based Systems	22000.1455	KB5022287	Jan 10, 2023
Windows 11 version 21H2 for x64-based Systems	22000.1455	KB5022287	Jan 10, 2023

Details

Published
January 10, 2023
Weakness
Use After Free
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21755

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