[German]On July 13, 2021, Microsoft released security updates for Windows clients and servers, for Office, etc. – as well as for other products – were released. Below is a compact overview of these updates released on the July 2021 patchday.
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A list of the updates can be found on this Microsoft page. Details on the update packages for Windows, Office, etc. are available in separate blog posts.
Notes on the updates
Windows 10 version 2004, 20H2 and 21H1 share a common core and have an identical set of system files. Therefore, the same security update will be delivered for these Windows 10 versions. 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 tech community 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 enhancement measures. From Windows 10 version 2004 onward, Microsoft integrates the Servicing Stack Updates (SSUs) into the Latest Cumulative Updates (LCUs). A list of the latest SSUs can be found at ADV990001 (although the list is not always up to date).
Windows 7 SP1 is no longer supported as of January 2020. Only customers with a 2nd year ESU license (or bypasses) will still receive updates. With the current ESU bypass lets install the update. Updates can also be downloaded from the Microsoft Update Catalog. The updates for Windows RT 8.1 and Microsoft Office RT are only available via Windows Update.
Vulnerabilities fixed
The July 2021 security updates cover 117 vulnerabilities (CVEs) in Microsoft products such asMicrosoft Windows, Dynamics, Exchange Server, Microsoft Office, Windows Storage Spaces Controller, Bing, SharePoint Server, Internet Explorer (IE), Visual Studio and OpenEnclave. A total of 17 of these bugs were reported through the ZDI program. Of those 117 bugs, 13 are rated critical, 103 are rated important and one is rated medium. A list of all security updates, including CVEs, can be found on the Zero Day Initiative blog (details are covered separately in blog posts).
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This amount of bug fixes is more than the previous two months combined and is on par with the monthly totals for 2020. It's possible that the lower rate in previous months was an outlier. According to Microsoft, six of these bugs are publicly known and four are listed as actively attacked at the time of publication.
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 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 10 Version 21H1 for 32-bit Systems
Windows 10 Version 21H1 for ARM64-based Systems
Windows 10 Version 21H1 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 Exchange Server 2013 Cumulative Update 23
Microsoft Exchange Server 2016 Cumulative Update 19
Microsoft Exchange Server 2016 Cumulative Update 20
Microsoft Exchange Server 2016 Cumulative Update 21
Microsoft Exchange Server 2019 Cumulative Update 10
Microsoft Exchange Server 2019 Cumulative Update 8
Microsoft Exchange Server 2019 Cumulative Update 9
Microsoft Malware Protection Engine
HEVC Video Extensions
Microsoft Dynamics 365 Business Central 2020 Release Wave 1 – Update 16.14
Microsoft Dynamics 365 Business Central 2020 Release Wave 2 – Update 17.8
Microsoft Dynamics 365 Business Central 2021 Release Wave 1 – Update 18.3
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 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 2013 Service Pack 1
Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Foundation 2013 Service Pack 1
Microsoft SharePoint Server 2019
Microsoft Word 2016 (32-bit edition)
Microsoft Word 2016 (64-bit edition)
Power BI Report Server
Microsoft Bing Search for Android
.NET Education Bundle SDK Install Tool
.NET Install Tool for Extension Authors
Open Enclave SDK
Visual Studio Code
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