Tuesday, January 12, 2021

Microsoft January 2021 Security Updates

The Microsoft January 2021 security updates have been released and consist of 83 CVEsOf these 83 CVEs, 10 are rated Critical and 73 are rated Important in severity.  At the time of release, CVE-2021-1648 is publicly known and CVE-2021-1647 is known to be actively exploited.

The updates apply to the following:  Microsoft Windows, Microsoft Edge (EdgeHTML-based), Microsoft Office and Microsoft Office Services and Web Apps, Microsoft Windows Codecs Library, Visual Studio, SQL Server, Microsoft Malware Protection Engine, NET Core, .NET Repository, ASP .NET, and Azure.

If you are using Windows Update, the latest SSU (KB4598481) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.  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 ArticleApplies To
4598229 Windows 10, Version 1903, Windows Server, Version 1903, Windows 10, Version 1909, Windows Server, Version 1909
4598230 Windows 10, Version 1809, Windows Server 2019
4598242 Windows 10, Version 2004, Windows Server, Version 2004, Windows 10, Version 20H2, Windows Server, Version 20H2
4598275 Windows 8.1, Windows Server 2012 R2 (Security-only update)
4598278 Windows Server 2012 (Monthly Rollup)
4598279 Windows 7, Windows Server 2008 R2 (Monthly Rollup)
4598285 Windows 8.1, Windows Server 2012 R2 (Monthly Rollup)
4598287 Windows Server 2008 (Security-only update)
4598288 Windows Server 2008 (Monthly Rollup)
4598289 Windows 7, Windows Server 2008 R2 (Security-only update)
4598297 Windows Server 2012 (Security-only update)

 Recommended Reading 

See Dustin Childs review and analysis in Zero Day Initiative -- The January 2021 Security Update Revuew.

For more information about the updates released today, see the Security Update Guide.

REMINDER:  Adobe Flash Player is out of support.  For more information, see Adobe Flash end of support on December 31, 2020. Flash content is blocked from running in Flash Player today, January 12, 2021. For more information, see Adobe Flash Player EOL General Information Page.

Additional Update Notes:


Remember - "A day without laughter is a day wasted."
May the wind sing to you and the sun rise in your heart...

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