Microsoft March 2021 Security Updates

Corrine · Mar 9, 2021

The Microsoft March 2021 security updates have been released and consist of 89 CVEs, including the seven Exchange CVEs released last week. Of these 89 CVEs, 14 are rated Critical and 75 are rated Important in severity. At the time of release, two of the bugs are listed as publicly known and five are listed as under active attack.

The updates apply to the following products: Microsoft Windows components, Azure and Azure DevOps, Azure Sphere, Internet Explorer and Edge (EdgeHTML), Exchange Server, Office and Office Services and Web Apps, SharePoint Server, Visual Studio, and Windows Hyper-V.

Important Note For Windows 10, Version 2004 and Windows 10, Version 20H2:
Quote

Before installing this update

Prerequisite:

Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). If you encounter the error, 0x800f0823 – CBS_E_NEW_SERVICING_STACK_REQUIRED, close the error message and install the last standalone SSU (KB4598481) before installing this LCU. You will not need to install this SSU (KB4598481) again for future updates.

For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

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

March Security Updates Guide

SleepyDude · Mar 10, 2021

Windows 10 crashes when printing due to Microsoft March updates

Microsoft has pulled the Windows 10 10 KB5000802 and KB5000808 cumulative updates afters users began reporting Blue Screen of Death crashes when printing to network printers.

Src: Windows 10 crashes when printing due to Microsoft March updates

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Microsoft March 2021 Security Updates

Corrine

Administrator,
Microsoft MVP,
Security Analyst

SleepyDude

Windows Update Moderator, Security Analyst

Windows 10 crashes when printing due to Microsoft March updates

Microsoft March 2021 Security Updates

Corrine

Administrator, Microsoft MVP, Security Analyst

SleepyDude

Windows Update Moderator, Security Analyst

Windows 10 crashes when printing due to Microsoft March updates​

Administrator,
Microsoft MVP,
Security Analyst

Windows 10 crashes when printing due to Microsoft March updates