Microsoft · Security update · December 12, 2023

KB5033372: December 2023 cumulative update for Windows 10 21H2

KB5033372, released December 12, 2023, fixes 15 CVEs across 6 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent1 publicly disclosed

CVEs closed

3 rated Critical

Exploited

None reported

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.9282

99th percentile

Priority of the 15 CVEs

Patch now 0
                                Urgent 8
                                High 4
                                Routine 3

Applies to

Product
Windows 10 Version 21H2 for 32-bit Systems
Windows 10 Version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Windows 10 Version 22H2 for 32-bit Systems
Windows 10 Version 22H2 for ARM64-based Systems
Windows 10 Version 22H2 for x64-based Systems

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Urgent	CVE-2023-35628	Windows MSHTML Platform	Remote Code Execution	8.1	0.9282	More likely
Urgent	CVE-2023-36005	Windows Telephony Server	Elevation of Privilege	7.5	0.2386	More likely
Urgent	CVE-2023-35641	Windows Internet Connection Sharing (ICS)	Remote Code Execution	8.8	0.0722	More likely
Urgent	CVE-2023-35632	Windows Internet Connection Sharing (ICS)	Elevation of Privilege	7.8	0.0654	More likely
Urgent	CVE-2023-35644	Windows Kernel-Mode Drivers	Elevation of Privilege	7.8	0.0625	More likely
Urgent	CVE-2023-35630	Windows Internet Connection Sharing (ICS)	Remote Code Execution	8.8	0.0613	Exploitation Less Likely
Urgent	CVE-2023-36696	Windows Cloud Files Mini Filter Driver	Elevation of Privilege	7.8	0.0086	More likely
Urgent	CVE-2023-36011	Windows Win32K	Elevation of Privilege	7.8	0.0071	More likely
High	CVE-2023-35639	Windows ODBC Driver	Remote Code Execution	8.8	0.0237	Exploitation Less Likely
High	CVE-2023-36006	Microsoft WDAC OLE DB provider for SQL	Remote Code Execution	8.8	0.0189	Exploitation Less Likely
High	CVE-2023-36004	Windows DPAPI (Data Protection Application Programming Interface)	Spoofing	7.5	0.0137	Exploitation Less Likely
High	CVE-2023-21740	Windows Media	Remote Code Execution	7.8	0.0109	Exploitation Less Likely
Routine	CVE-2023-20588	Chipsets	Information Disclosure	6.0	0.1115	DisclosedExploitation Less Likely
Routine	CVE-2023-36003	XAML Diagnostics	Elevation of Privilege	6.7	0.0285	Exploitation Less Likely
Routine	CVE-2023-35642	Windows Internet Connection Sharing (ICS)	Denial of Service	6.5	0.0128	Exploitation Less Likely

Released the same day

KB5002520
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB5002529
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB5029365
Microsoft Visual Studio 2013 Update 5
KB5029366
Microsoft Visual Studio 2015 Update 3
KB5029924
Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016 and 1 more
KB5030178
Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems, Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems, Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems and 6 more
KB5030179
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems and 3 more
KB5030180
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems and 3 more
KB5030181
Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for ARM64-based Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for x64-based Systems, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 21H2 for ARM64-based Systems and 1 more
KB5030182
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1, Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 and 3 more
KB5030183
Microsoft .NET Framework 3.5 on Windows Server 2012, Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation), Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 and 3 more
KB5030184
Microsoft .NET Framework 3.5 on Windows Server 2012 R2, Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation), Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 and 3 more

Vendor advisory

https://support.microsoft.com/help/5033372

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