CVE-2023-35632

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

CVE-2023-35632 is fixed in 23 products on 1 platform, first by KB5033373, released December 12, 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

0.0654

93rd percentile

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 1607 for 32-bit Systems	14393.6529	KB5033373	Dec 12, 2023
Windows 10 Version 1607 for x64-based Systems	14393.6529	KB5033373	Dec 12, 2023
Windows 10 Version 1809 for 32-bit Systems	17763.5206	KB5033371	Dec 12, 2023
Windows 10 Version 1809 for ARM64-based Systems	17763.5206	KB5033371	Dec 12, 2023
Windows 10 Version 1809 for x64-based Systems	17763.5206	KB5033371	Dec 12, 2023
Windows 10 Version 21H2 for 32-bit Systems		KB5033372	Dec 12, 2023
Windows 10 Version 21H2 for ARM64-based Systems		KB5033372	Dec 12, 2023
Windows 10 Version 21H2 for x64-based Systems		KB5033372	Dec 12, 2023
Windows 10 Version 22H2 for 32-bit Systems		KB5033372	Dec 12, 2023
Windows 10 Version 22H2 for ARM64-based Systems		KB5033372	Dec 12, 2023
Windows 10 Version 22H2 for x64-based Systems		KB5033372	Dec 12, 2023
Windows 10 for 32-bit Systems	10240.20345	KB5033379	Dec 12, 2023
Windows 10 for x64-based Systems	10240.20345	KB5033379	Dec 12, 2023
Windows Server 2008 R2 for x64-based Systems Service Pack 1		KB5033424	Dec 12, 2023
Windows Server 2008 R2 for x64-based Systems Service Pack 1		KB5033433	Dec 12, 2023
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)		KB5033424	Dec 12, 2023
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)		KB5033433	Dec 12, 2023
Windows Server 2012		KB5033429	Dec 12, 2023
Windows Server 2012 (Server Core installation)		KB5033429	Dec 12, 2023
Windows Server 2012 R2		KB5033420	Dec 12, 2023
Windows Server 2012 R2 (Server Core installation)		KB5033420	Dec 12, 2023
Windows Server 2016	14393.6529	KB5033373	Dec 12, 2023
Windows Server 2016 (Server Core installation)	14393.6529	KB5033373	Dec 12, 2023
Windows Server 2019	17763.5206	KB5033371	Dec 12, 2023
Windows Server 2019 (Server Core installation)	17763.5206	KB5033371	Dec 12, 2023

Details

Published
December 12, 2023
Weakness
Integer Overflow or Wraparound
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35632

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