Microsoft has announced the security updates for November 2021.

November 2021 Security Updates

Updates this Month

This release consists of security updates for the following products, features and roles.

• 3D Viewer
• Azure
• Azure RTOS
• Azure Sphere
• Microsoft Dynamics
• Microsoft Edge (Chromium-based)
• Microsoft Edge (Chromium-based) in IE Mode
• Microsoft Exchange Server
• Microsoft Office
• Microsoft Office Access
• Microsoft Office Excel
• Microsoft Office SharePoint
• Microsoft Office Word
• Microsoft Windows
• Microsoft Windows Codecs Library
• Power BI
• Role: Windows Hyper-V
• Visual Studio
• Visual Studio Code
• Windows Active Directory
• Windows COM
• Windows Core Shell
• Windows Cred SSProvider Protocol
• Windows Defender
• Windows Desktop Bridge
• Windows Diagnostic Hub
• Windows Fastfat Driver
• Windows Feedback Hub
• Windows Hello
• Windows Installer
• Windows Kernel
• Windows NTFS
• Windows RDP
• Windows Scripting
• Windows Virtual Machine Bus

Please note the following information regarding the security updates:

Security Update Guide Blog Posts

Date	Blog Post
February 9, 2021	Continuing to Listen: Good News about the Security Update Guide API
January 13, 2021	Security Update Guide Supports CVEs Assigned by Industry Partners
December 8, 2020	Security Update Guide: Let’s keep the conversation going
November 9, 2020	Vulnerability Descriptions in the New Version of the Security Update Guide

Relevant Information

• 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. For information on lifecycle and support dates for Windows 10 operating systems, please see  Windows Lifecycle Facts Sheet.
• Microsoft is improving Windows Release Notes. For more information, please see  What's next for Windows release notes.
• A list of the latest servicing stack updates for each operating system can be found in  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  4522133 for more information.

FAQs, Mitigations, and Workarounds

The following CVEs have FAQs, Mitigations, or Workarounds. You can see these in more detail from the Vulnerabilities tab by selecting FAQs, Mitigations and Workarounds columns in the Edit Columns panel.

• CVE-2021-26443
• CVE-2021-26444
• CVE-2021-3711
• CVE-2021-38631
• CVE-2021-38665
• CVE-2021-38666
• CVE-2021-40442
• CVE-2021-41368
• CVE-2021-41371
• CVE-2021-41373
• CVE-2021-41374
• CVE-2021-41375
• CVE-2021-41376
• CVE-2021-41379
• CVE-2021-42275
• CVE-2021-42277
• CVE-2021-42278
• CVE-2021-42280
• CVE-2021-42282
• CVE-2021-42284
• CVE-2021-42287
• CVE-2021-42291
• CVE-2021-42292
• CVE-2021-42296
• CVE-2021-42298
• CVE-2021-42300
• CVE-2021-42301
• CVE-2021-42302
• CVE-2021-42303
• CVE-2021-42304
• CVE-2021-42321
• CVE-2021-42323
• CVE-2021-43208
• CVE-2021-43209

Known Issues

You can see these in more detail from the Deployments tab by selecting Known Issues column in the Edit Columns panel.

For more information about Windows Known Issues, please see  Windows message center (links to currently-supported versions of Windows are in the left pane).

KB Article	Applies To
5007186	Windows 10, Version 2004, Windows Server, Version 2004, Windows 10, Version 20H2, Windows Server, Version 20H2, Windows 10, Version 21H1, Windows Server, Version 21H1
5007189	Windows 10, Version 1909
5007192	Windows 10, Version 1607, Windows Server 2016
5007205	Windows Server 2022
5007206	Windows 10, Version 1809, Windows Server 2019
5007207	Windows 10
5007233	Windows 7, Windows Server 2008 R2 (Security-only update)
5007236	Windows 7, Windows Server 2008 R2 (Monthly Rollup)
5007245	Windows Server 2012 (Security-only update)
5007246	Windows Server 2008 (Security-only update)
5007247	Windows 8.1, Windows Server 2012 R2 (Monthly Rollup)
5007255	Windows 8.1, Windows Server 2012 R2 (Security-only update)
5007260	Windows Server 2012 (Monthly Rollup)
5007263	Windows Server 2008 (Monthly Rollup)
5007409	Exchange Server

Security Update Guide - Microsoft Security Response Center