Microsoft · Security update · October 13, 2020

KB4580469: October 2020 security update

KB4580469, released October 13, 2020, fixes 1 CVE across 16 products. None of them is reported as exploited. Patch Radar priority: Routine.

Routine1 publicly disclosed

CVEs closed

None rated Critical

Exploited

None reported

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.0329

88th percentile

Applies to

Product
Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems
Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems
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 4.5.2 on Windows 8.1 for 32-bit systems
Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems
Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2
Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation)
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 8.1 for 32-bit systems
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 8.1 for x64-based systems
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation)
Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems
Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems
Microsoft .NET Framework 4.8 on Windows Server 2012 R2
Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Routine	CVE-2020-16937	.NET Framework	Information Disclosure	4.7	0.0329	DisclosedExploitation 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/4580469

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