CVE-2023-29336

Win32k Elevation of Privilege Vulnerability

CVE-2023-29336 is fixed in 16 products on 1 platform, first by KB5026363, released May 9, 2023. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on May 9, 2023. Patch Radar priority: Patch now.

Patch nowCISA KEV

CVSS

7.8

Important

Exploitation

Exploited

Reported by the vendor

CISA KEV

May 9, 2023

Federal due date May 30, 2023

EPSS

0.4119

98th percentile

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 1607 for 32-bit Systems	14393.5921	KB5026363	May 9, 2023
Windows 10 Version 1607 for x64-based Systems	14393.5921	KB5026363	May 9, 2023
Windows 10 for 32-bit Systems	10240.19926	KB5026382	May 9, 2023
Windows 10 for x64-based Systems	10240.19926	KB5026382	May 9, 2023
Windows Server 2008 R2 for x64-based Systems Service Pack 1		KB5026413	May 9, 2023
Windows Server 2008 R2 for x64-based Systems Service Pack 1		KB5026426	May 9, 2023
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)		KB5026413	May 9, 2023
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)		KB5026426	May 9, 2023
Windows Server 2008 for 32-bit Systems Service Pack 2		KB5026427	May 9, 2023
Windows Server 2008 for 32-bit Systems Service Pack 2		KB5026408	May 9, 2023
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)		KB5026427	May 9, 2023
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)		KB5026408	May 9, 2023
Windows Server 2008 for x64-based Systems Service Pack 2		KB5026427	May 9, 2023
Windows Server 2008 for x64-based Systems Service Pack 2		KB5026408	May 9, 2023
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)		KB5026427	May 9, 2023
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)		KB5026408	May 9, 2023
Windows Server 2012		KB5026419	May 9, 2023
Windows Server 2012		KB5026411	May 9, 2023
Windows Server 2012 (Server Core installation)		KB5026419	May 9, 2023
Windows Server 2012 (Server Core installation)		KB5026411	May 9, 2023
Windows Server 2012 R2		KB5026409	May 9, 2023
Windows Server 2012 R2		KB5026415	May 9, 2023
Windows Server 2012 R2 (Server Core installation)		KB5026409	May 9, 2023
Windows Server 2012 R2 (Server Core installation)		KB5026415	May 9, 2023
Windows Server 2016	14393.5921	KB5026363	May 9, 2023
Windows Server 2016 (Server Core installation)	14393.5921	KB5026363	May 9, 2023

Details

Published
May 9, 2023
Weakness
Use After Free
CISA required action
Apply updates per vendor instructions.
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29336

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