Microsoft · Security update · January 14, 2020

KB4534309: January 2020 security update

KB4534309, released January 14, 2020, fixes 26 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

3 rated Critical

Exploited

None reported

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.7768

99th percentile

Priority of the 26 CVEs

Patch now 0
                                Urgent 4
                                High 16
                                Routine 6

Applies to

Product
Windows 8.1 for 32-bit systems
Windows 8.1 for x64-based systems
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Urgent	CVE-2020-0609	Windows RDP	Remote Code Execution	9.8	0.7768	N/A
Urgent	CVE-2020-0610	Windows RDP	Remote Code Execution	9.8	0.6757	N/A
Urgent	CVE-2020-0611	Windows RDP	Remote Code Execution	7.5	0.0718	Exploitation Less Likely
Urgent	CVE-2020-0634	Common Log File System Driver	Elevation of Privilege	7.8	0.0132	More likely
High	CVE-2020-0642	Microsoft Graphics Component	Elevation of Privilege	7.8	0.0161	Exploitation Less Likely
High	CVE-2020-0635	Microsoft Windows	Elevation of Privilege	7.8	0.0113	Exploitation Less Likely
High	CVE-2020-0641	Windows Media	Elevation of Privilege	7.8	0.0099	Exploitation Less Likely
High	CVE-2020-0644	Microsoft Windows	Elevation of Privilege	7.8	0.0093	Exploitation Less Likely
High	CVE-2020-0613	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0091	Exploitation Less Likely
High	CVE-2020-0614	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0086	Exploitation Less Likely
High	CVE-2020-0623	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0086	Exploitation Less Likely
High	CVE-2020-0625	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0086	Exploitation Less Likely
High	CVE-2020-0627	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0086	Exploitation Less Likely
High	CVE-2020-0628	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0086	Exploitation Less Likely
High	CVE-2020-0631	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0081	Exploitation Less Likely
High	CVE-2020-0620	Microsoft Windows	Elevation of Privilege	7.8	0.0080	Exploitation Less Likely
High	CVE-2020-0626	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0080	Exploitation Less Likely
High	CVE-2020-0629	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0080	Exploitation Less Likely
High	CVE-2020-0630	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0080	Exploitation Less Likely
High	CVE-2020-0632	Microsoft Windows Search Component	Elevation of Privilege	7.8	0.0080	Exploitation Less Likely
Routine	CVE-2020-0607	Microsoft Graphics Component	Information Disclosure	5.5	0.0634	Exploitation Less Likely
Routine	CVE-2020-0637	Windows RDP	Information Disclosure	5.7	0.0538	N/A
Routine	CVE-2020-0615	Common Log File System Driver	Information Disclosure	5.5	0.0180	Exploitation Less Likely
Routine	CVE-2020-0608	Microsoft Windows	Information Disclosure	5.5	0.0140	Exploitation Less Likely
Routine	CVE-2020-0639	Common Log File System Driver	Information Disclosure	5.5	0.0140	Exploitation Less Likely

Released the same day

KB4484217
Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition)
KB4484221
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB4484223
Office Online Server
KB4484227
Microsoft Office 2013 RT Service Pack 1, Microsoft Office 2013 Service Pack 1 (32-bit editions), Microsoft Office 2013 Service Pack 1 (64-bit editions)
KB4484234
Microsoft Excel 2013 RT Service Pack 1, Microsoft Excel 2013 Service Pack 1 (32-bit editions), Microsoft Excel 2013 Service Pack 1 (64-bit editions)
KB4484236
Microsoft Office 2010 Service Pack 2 (32-bit editions), Microsoft Office 2010 Service Pack 2 (64-bit editions)
KB4484243
Microsoft Excel 2010 Service Pack 2 (32-bit editions), Microsoft Excel 2010 Service Pack 2 (64-bit editions)
KB4528760
Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems, Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems, Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems and 11 more
KB4532933
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
KB4532935
Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems
KB4532936
Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation)
KB4532938
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for 32-bit Systems and 3 more

Vendor advisory

https://support.microsoft.com/help/4534309

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