Microsoft November 2023 Security Updates

 

The Microsoft November 2023 security updates have been released and consist of 63 new patches. In addition, multiple Chromium bugs and other externally reported CVEs are being incorporated into the release, bringing the total number of CVEs to 78.

Of the CVEs released, 3 are rated critical, 56 are rated important and 4 are rated moderate in severity. At the time of release, three of the CVEs are listed as being under active attack and three as publicly known.

The security updates apply to the following products, features and roles: Microsoft Windows and Windows Components; Exchange Server; Office and Office Components; ASP.NET and .NET Framework; Azure; Mariner; Microsoft Edge (Chromium-based), Visual Studio, and Windows Hyper-V.

See the list of KBs at the bottom of the page at November 2023 Security Updates - Release Notes - Security Update Guide - Microsoft for information regarding known issues with the security updates as well as the CVEs with FAQs, Mitigations and/or Workarounds. For specific information on Windows 11, versions 23H2 and 22H2, see KB5032190.  For Windows 10, Version 22H2 and 21H2, see KB5032189.

Recommended Reading:   See Dustin Childs review and analysis in Zero Day Initiative -- The Novemberr 2023 Security Update Review.

 

Additional Update Notes:

• 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 -- Microsoft now combines the latest servicing stack update (SSU) for your operating system with the Latest Cumulative Updates (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
  
• Windows updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows, in addition to non-security updates. The updates are also available via search for the KB number in the Microsoft Update Catalog.
• For information on lifecycle and support dates for Windows 10 and Windows 11 operating systems, please see Windows 10 Home and Pro and Windows 11 Home and Pro.
• Windows Update History:
• Windows 11
• Windows 10

 

References

• Security Update FAQ
• Security Updates Guide

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