Tuesday, November 10, 2020

Microsoft November 2020 Security Updates

The Microsoft November security updates have been released and consist of 112 CVEs.  Of these 112 CVEs, 17 are rated Critical, 93 are rated Important and 2 are rated low in severity.  

The updates apply to the following:  Microsoft Windows, Microsoft Office and Microsoft Office Services and Web Apps, Internet Explorer, Microsoft Edge (EdgeHTML-based)m Microsoft Edge (Chromium-based), ChakraCore, Microsoft Exchange Server, Microsoft Dynamics, Microsoft Windows Codecs Library, Azure Sphere, Windows Defender, Microsoft Teams, Azure SDK, Azure DevOps, and Visual Studio.

An update to ADV990001 includes information on the new versions of Servicing Stack.  For information about Servicing Stack updates see Servicing Stack Updates (SSU).

The KBs listed below contain information about known issues with the security updates. 

KB Article Applies To
4486714 SharePoint Server 2019
4486717 SharePoint Server 2016
4586781 Windows 10, version 2004, Windows Server version 2004, Windows 10, version 20H2, Windows Server version 20H2
4586786 Windows 10, version 1903, Windows Server version 1903, Windows 10, version 1909, Windows Server version 1909
4586793 Windows 10 Version 1809, Windows Server 2019
4586805 Windows 7, Windows Server 2008 R2 (Security-only update)
4586807 Windows Server 2008 (Monthly Rollup)
4586808 Windows Server 2012 (Security-only update)
4586817 Windows Server 2008 (Security-only update)
4586823 Windows 8.1, Windows Server 2012 R2 (Security-only update)
4586827 Windows 7, Windows Server 2008 R2 (Monthly Rollup)
4586830 Windows 10, version 1607, Windows Server 2016
4586834 Windows Server 2012 (Monthly Rollup)
4586845 Windows 8.1, Windows Server 2012 R2 (Monthly Rollup)
4486714 SharePoint Server 2019
4486717 SharePoint Server 2016
4588741 Microsoft Exchange Server 2013, Microsoft Exchange Server 2016, Microsoft Exchange Server 2019

Recommended Reading 

See Dustin Childs review and analysis in Zero Day Initiative — The November Security Update Review.

For more information about the updates released today, see the new version of the Security Update Guide, described here.

Additional Update Notes:

  • Adobe Flash Player -- For Windows Server 2012, Windows 8.1, Windows Server 2012 R2, Windows RT 8.1 and Windows 10, Adobe Flash Player is now a security bulletin rather than a security advisory and is included with the updates as identified above.
  • MSRT -- The Malicious Software Removal Tool is now run on a quarterly basis rather than monthly.  See Remove specific prevalent malware with Windows Malicious Software Removal Tool.
  • Servicing Stack Updates -- 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. Learn more about SSU's in Servicing Stack Updates (SSU)
  • 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 also available via the Microsoft Update Catalog.
  • For information on lifecycle and support dates for Windows 10 operating systems, please see Windows Lifecycle Facts Sheet.
  • Windows Update History:


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