Microsoft · Security update · October 13, 2020

KB4580358: October 2020 security update

KB4580358, released October 13, 2020, fixes 20 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

0.1260

96th percentile

Priority of the 20 CVEs

Patch now 0
                                Urgent 5
                                High 12
                                Routine 3

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-2020-16896	Windows RDP	Information Disclosure	7.5	0.1260	More likely
Urgent	CVE-2020-16911	Microsoft Graphics Component	Remote Code Execution	8.8	0.0445	Exploitation Less Likely
Urgent	CVE-2020-16923	Microsoft Graphics Component	Remote Code Execution	7.8	0.0383	Exploitation Less Likely
Urgent	CVE-2020-16891	Windows Hyper-V	Remote Code Execution	8.8	0.0095	Exploitation Less Likely
Urgent	CVE-2020-16922	Microsoft Windows	Spoofing	5.3	0.0081	More likely
High	CVE-2020-16927	Windows RDP	Denial of Service	7.5	0.0592	Exploitation Less Likely
High	CVE-2020-16924	Microsoft Windows	Remote Code Execution	7.8	0.0412	Exploitation Less Likely
High	CVE-2020-16939	Group Policy	Elevation of Privilege	7.8	0.0242	Exploitation Less Likely
High	CVE-2020-16940	Microsoft Windows	Elevation of Privilege	7.8	0.0155	Exploitation Less Likely
High	CVE-2020-16920	Microsoft Windows	Elevation of Privilege	7.8	0.0142	Exploitation Less Likely
High	CVE-2020-16935	Microsoft Windows	Elevation of Privilege	7.8	0.0100	Exploitation Less Likely
High	CVE-2020-16916	Windows COM	Elevation of Privilege	7.8	0.0098	Exploitation Less Likely
High	CVE-2020-16902	Windows Installer	Elevation of Privilege	7.8	0.0094	Exploitation Less Likely
High	CVE-2020-16887	Microsoft Windows	Elevation of Privilege	7.8	0.0092	Exploitation Less Likely
High	CVE-2020-16892	Windows Kernel	Elevation of Privilege	7.8	0.0091	Exploitation Less Likely
High	CVE-2020-16980	Microsoft Windows	Elevation of Privilege	7.8	0.0090	Exploitation Less Likely
High	CVE-2020-16900	Microsoft Windows	Elevation of Privilege	7.0	0.0071	Exploitation Less Likely
Routine	CVE-2020-16889	Windows Kernel	Information Disclosure	5.5	0.0136	Exploitation Less Likely
Routine	CVE-2020-16914	Microsoft Graphics Component	Information Disclosure	5.5	0.0136	Exploitation Less Likely
Routine	CVE-2020-16897	Microsoft Windows	Information Disclosure	5.5	0.0124	Exploitation Less Likely

Released the same day

KB4462175
Microsoft Excel Web App 2010 Service Pack 2, Microsoft Office Web Apps 2010 Service Pack 2
KB4484417
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB4484435
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)
KB4484524
Microsoft Outlook 2013 RT Service Pack 1, Microsoft Outlook 2013 Service Pack 1 (32-bit editions), Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
KB4484531
Microsoft SharePoint Server 2010 Service Pack 2
KB4486663
Microsoft Outlook 2010 Service Pack 2 (32-bit editions), Microsoft Outlook 2010 Service Pack 2 (64-bit editions)
KB4486674
Microsoft Office Online Server
KB4486676
Microsoft SharePoint Server 2019
KB4486677
Microsoft SharePoint Enterprise Server 2016
KB4486678
Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition)
KB4486679
Microsoft Word 2016 (32-bit edition), Microsoft Word 2016 (64-bit edition)
KB4486682
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)

Vendor advisory

https://support.microsoft.com/help/4580358

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