Today is the monthly 'Windows Update' day

This month, too, there was a Windows Update that delivers monthly Windows security updates and bug fixes. Let's update as soon as possible.

December 2021 Security Updates (Monthly) – Microsoft Security Response Center
https://msrc-blog.microsoft.com/2021/12/14/202112-security-updates/

We have released the security update for December 2021. By default, it will be updated automatically. An overview is posted on the blog for corporate organizations that manage updates. Please refer to it and deploy the update as soon as possible. https://t.co/lFHDmS96XR pic.twitter.com/QjBolBHC9B

— Microsoft Security Team (@JSECTEAM) December 14, 2021

◆ Windows 11
Maximum severity:
emergency

Most impact:
Code is executed remotely

Relevant Knowledge Base article or support web page:
KB5008215

◆ Windows 10 v21H2, v21H1, v20H2, v2004, v1909
Maximum severity:
emergency

Most impact:
Code is executed remotely

Relevant Knowledge Base article or support web page:
Windows 10 v21H2, v21H1, v20H2, v2004: KB5008212
Windows 10 v1909: KB5008206

◆ Windows Server 2022
Maximum severity:
emergency

Most impact:
Code is executed remotely

Relevant Knowledge Base article or support web page:
KB5008223

◆ Windows Server 2019, Windows Server 2016, and Server Core installations (2019, 2016, v20H2, and v2004)
Maximum severity:
emergency

Most impact:
Code is executed remotely

Relevant Knowledge Base article or support web page:
Windows Server 2019: KB5008218
Windows Server 2016: KB5008207
Windows Server, version v20H2, v2004: KB5008212

◆ Windows 8.1, Windows Server 2012 R2, Windows Server 2012
Maximum severity:
emergency

Most impact:
Code is executed remotely

Relevant Knowledge Base article or support web page:
Windows 8.1, Windows Server 2012R2: 5008263 (Monthly Rollup), 5008285 (Security Only)
Windows Server 2012: 5008277 (Monthly Rollup), 5008255 (Security Only)

◆ Microsoft Office
Maximum severity:
emergency

Most impact:
Code is executed remotely

Relevant Knowledge Base article or support web page:
For more information about the security update, Https : //Docs.Microsoft.Com/ Officeupdates Please refer to the.

◆ Microsoft SharePoint
Maximum severity:
important

Most impact:
Code is executed remotely

Relevant Knowledge Base article or support web page:
For more information about the security update, Https : //Docs.Microsoft.Com/officeupdates/ Sharepoint-Updates Please refer to the.

◆ Microsoft ASP.NET Core
Maximum severity:
important

Most impact:
Elevation of privilege

Relevant Knowledge Base article or support web page:
For more information about the security update program, Https://Docs.Microsoft.Com/aspnet/core / Please refer to the reference.

◆ Microsoft Visual Studio
Maximum severity:
emergency

Most impact:
Code is executed remotely

Relevant Knowledge Base article or support web page:
For more information about the security update, Https : //Docs.Microsoft.Com/ Visualstudio Please refer to the.

◆ Microsoft Defender for IoT
Maximum severity:
emergency

Most impact:
Code is executed remotely

Relevant Knowledge Base article or support web page:
For more information about the security update, Https : //Docs.Microsoft.Com/azure/defender-for-iot / a Please refer to.

◆ Microsoft PowerShell
Maximum severity:
important

Most impact:
Spoofing

Relevant Knowledge Base article or support web page:
For more information about the security update, Https : //Docs.Microsoft.Com/ Powershell Please refer to the.

The Windows Update will be released on the second Tuesday of every month in US time, and the next update will be available on Wednesday, January 12, 2021 Japan time.