CVE-2023-21756

Published: Jul 11, 2023Modified: Nov 21, 2024

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

Windows Win32k Elevation of Privilege Vulnerability

Affected (12)

Products: Microsoft: Windows 10 1507, Windows 10 1607, Windows 10 1809, Windows 10 21h2, Windows 10 22h2, Windows 11 21h2, Windows 11 22h2, Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2022

11 products

Windows 10 1507

Windows 10 1607

Windows 10 1809

Windows 10 21h2

Windows 10 22h2

Windows 11 21h2

Windows 11 22h2

Windows Server 2012

Windows Server 2016

Windows Server 2019

Windows Server 2022

Configuration A

12 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 10 1507	Before 10.0.10240.20048
Microsoft Windows 10 1607	Before 10.0.14393.6085
Microsoft Windows 10 1809	Before 10.0.17763.4645
Microsoft Windows 10 21h2	Before 10.0.19041.3208
Microsoft Windows 10 22h2	Before 10.0.19045.3208
Microsoft Windows 11 21h2	Before 10.0.22000.2176
Microsoft Windows 11 22h2	Before 10.0.22621.1992
Microsoft Windows Server 2012	All versions
Microsoft Windows Server 2012	Version r2
Microsoft Windows Server 2016	All versions
Microsoft Windows Server 2019	All versions
Microsoft Windows Server 2022	All versions

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21756

Source: secure@microsoft.com

PatchVendor Advisory

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21756

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

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