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Microsoft Security Update Summary for May 11, 2021
Issued: May 11, 2021 ********************************************************************

This summary lists security updates released for May 11, 2021.

Complete information for the May 2021 security update release
Can be found at <https://msrc.microsoft.com/update-guide/>.

Please note the following information regarding the security updates:

* For information regarding enabling Windows 10, version 1909 features,
please see Windows 10, version 1909 delivery options: https://techcommunity.microsoft.com/t5/Windows-IT-Pro-Blog/Windows-10- version-1909-delivery-options/ba-p/1002660. Note that these versions of
Windows 10 share a common core operating system with an identical set of
system files: 1903 and 1909; 2004 and 20H2. They will also share the same security update KBs.
* Windows 10 updates are cumulative. The monthly security release
includes all security fixes for vulnerabilities that affect Windows
10, in addition to non-security updates. The updates are available
via the Microsoft Update Catalog: https://catalog.update.microsoft.com/v7/site/Home.aspx.
* For information on lifecycle and support dates for Windows 10
operating systems, please see the Windows Lifecycle Facts Sheet: https://support.microsoft.com/en-us/help/13853/windows-
lifecycle-fact-sheet).
* A list of the latest servicing stack updates for each operating
system can be found in ADV990001: https://msrc.microsoft.com/update- guide/vulnerability/ADV990001. This list will be
updated whenever a new servicing stack update is released. It is
important to install the latest servicing stack update.
* In addition to security changes for the vulnerabilities, updates
include defense-in-depth updates to help improve security-related
features.
* Customers running Windows 7, Windows Server 2008 R2, or Windows Server 2008 need to purchase the Extended Security Update to continue receiving security updates. See https://support.microsoft.com/en-us/help/4522133/procedure-to- continue-receiving-security-updates for more information.
* There is a change coming with regards to Servicing Stack Updates. Please
see Simplifying SSUs for more information.


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)
Web Media Extensions
Internet Explorer 11


Important Security Updates
============================

Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft 365 Apps for Enterprise for 64-bit Systems
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 CU10
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)
Microsoft Office 2016 (32-bit edition)
Microsoft Office 2016 (64-bit edition)
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 2013 Service Pack 1
Microsoft SharePoint Server 2019
Microsoft Word 2013 RT Service Pack 1
Microsoft Word 2013 Service Pack 1 (32-bit editions)
Microsoft Word 2013 Service Pack 1 (64-bit editions)
Microsoft Word 2016 (32-bit edition)
Microsoft Word 2016 (64-bit edition)
Microsoft Exchange Server 2013 Cumulative Update 23
Microsoft Exchange Server 2016 Cumulative Update 19
Microsoft Exchange Server 2016 Cumulative Update 20
Microsoft Exchange Server 2019 Cumulative Update 8
Microsoft Exchange Server 2019 Cumulative Update 9
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 16.9 (includes 16.0 - 16.8)
Visual Studio 2019 for Mac version 8.9
Visual Studio Code
Visual Studio Code Remote - Containers Extension
.NET 5.0
.NET Core 3.1
Skype for Business Server 2015 CU11
Skype for Business Server 2019 CU5
Microsoft Accessibility Insights for Web
Dynamics 365 for Finance and Operations
common_utils.py


Other Information
=================

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