Microsoft Security Update Summary (February 9, 2021)

[German]On February 9, 2021, Microsoft released security updates for Windows clients and servers, for Office, Internet Explorer, and so on. Here you can find a compact overview of these updates. A list of the updates can be found on this Microsoft page. Details about the update packages for Windows, Office, etc. are available in separate blog posts.


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Notes on the updates

Windows 10 version 1903 and 1909 and 2004 and 20H2 share a common core and have an identical set of system files. Therefore, the same security updates are delivered for Windows 10 version 190x and Windows 10 2004/20H2. Information on how to enable the features of Windows 10 version 1909 as well as 20H2, which is done through an Enablement Package update, can be found in this Techcommunity post.

All Windows 10 updates are cumulative. The monthly Patchday update includes all security fixes for Windows 10 and all non-security fixes through Patchday. In addition to vulnerability security patches, the updates include security improvements.

Windows 7 SP1 is no longer supported as of January 2020. Only customers with a 2nd year ESU license (or bypass measures) will still receive updates. The current ESU bypass lets you install the update. Updates can also be downloaded from the Microsoft Update Catalog. Updates for Windows RT 8.1 and Microsoft Office RT are only available through Windows Update.

Fixed vulnerabilities

The February 2021 security updates cover 56 vulnerabilities (CVEs) in Microsoft products such as Microsoft Windows, Edge, Microsoft Office, etc. One is a 0-day patch with it, 11 are rated critical and 43 are rated important. A list of all security updates including CVEs can be found on the Zero Day Initiative blog as well as Bleeping Computer (details are covered separately in blog posts).

Critical Security Updates

Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1803 for 32-bit Systems
Windows 10 Version 1803 for ARM64-based Systems
Windows 10 Version 1803 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1909 for 32-bit Systems
Windows 10 Version 1909 for ARM64-based Systems
Windows 10 Version 1909 for x64-based Systems
Windows 10 Version 2004 for 32-bit Systems
Windows 10 Version 2004 for ARM64-based Systems
Windows 10 Version 2004 for x64-based Systems
Windows 10 Version 20H2 for 32-bit Systems
Windows 10 Version 20H2 for ARM64-based Systems
Windows 10 Version 20H2 for x64-based Systems
Windows 8.1 for 32-bit systems
Windows 8.1 for x64-based systems
Windows RT 8.1
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)
Windows Server 2016
Windows Server 2016  (Server Core installation)
Windows Server 2019
Windows Server 2019  (Server Core installation)
Windows Server, version 1909 (Server Core installation)
Windows Server, version 2004 (Server Core installation)
Windows Server, version 20H2 (Server Core Installation)
Microsoft .NET Framework 4.6
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Microsoft .NET Framework 4.7.2
Microsoft .NET Framework 4.8
.NET 5.0
.NET Core 2.1
.NET Core 3.1
Microsoft Visual Studio 2017 version 15.9 (includes 15.0 – 15.8)
Microsoft Visual Studio 2019 version 16.4 (includes 16.0 – 16.3)
Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)
Microsoft Visual Studio 2019 version 16.8
Visual Studio Code
Visual Studio Code – npm-script Extension
Package Manager Configurations
PsExec


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Important Security Updates

Microsoft Edge (Chromium-based)
Microsoft Edge for Android
azure-iot-cli-extension
Microsoft Azure Kubernetes Service
Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Excel 2010 Service Pack 2 (32-bit editions)
Microsoft Excel 2010 Service Pack 2 (64-bit editions)
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)
Microsoft Excel 2016 (32-bit edition)
Microsoft Excel 2016 (64-bit edition)
Microsoft Lync Server 2013
Microsoft Office 2019 for 32-bit editions
Microsoft Office 2019 for 64-bit editions
Microsoft Office 2019 for Mac
Microsoft Office Online Server
Microsoft Office Web Apps Server 2013 Service Pack 1
Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Foundation 2010 Service Pack 2
Microsoft SharePoint Foundation 2013 Service Pack 1
Microsoft SharePoint Server 2019
Microsoft Teams for iOS
Office Online Server
Skype for Business Server 2015 CU 8
Skype for Business Server 2019  CU2
Microsoft Exchange Server 2016 Cumulative Update 18
Microsoft Exchange Server 2016 Cumulative Update 19
Microsoft Exchange Server 2019 Cumulative Update 7
Microsoft Exchange Server 2019 Cumulative Update 8
Dynamics 365 Business Central 2019 Release Wave 2 (On-Premise)
Microsoft Dynamics 365 (on-premises) version 8.2
Microsoft Dynamics 365 (on-premises) version 9.0
Microsoft Dynamics 365 Business Central 2020 Release Wave 1
Microsoft Dynamics 365 Business Central 2020 Release Wave 2
Microsoft Dynamics NAV 2015
Microsoft Dynamics NAV 2016
Microsoft Dynamics NAV 2017
Microsoft Dynamics NAV 2018
Microsoft Endpoint Protection
Microsoft Security Essentials
Microsoft System Center 2012 Endpoint Protection
Microsoft System Center 2012 R2 Endpoint Protection
Microsoft System Center Endpoint Protection
System Center 2019 Operations Manager
Windows Defender

Similar articles:
Microsoft Office Patchday (February 2, 2021)
Microsoft Security Update Summary (February 9, 2021)
Patchday: Windows 10-Updates (February 9, 2021)
Patchday: Updates for Windows 7/Server 2008 R2 (February 9, 2021)
Patchday: Windows 8.1/Server 2012 Updates (February 9, 2021)
Patchday Microsoft Office Updates (February 9, 2021)


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