Today is the monthly “Windows Update” day.

On December 13, 2023, the monthly ' Windows Update ', which distributes Windows security updates and bug fixes, was held. Please update it as soon as possible.

December 2023 Security Updates (Monthly) | MSRC Blog | Microsoft Security Response Center
https://msrc.microsoft.com/blog/2023/12/202312-security-update/

Microsoft monthly security updates for December 2023 have been released. By default it updates automatically. For organizations managing updates, we have published an overview on our blog. Please refer to it and update it as soon as possible. https://t.co/Shf17hwvcJ #Security #Updates #Microsoft pic.twitter.com/uYzzM7f6li

— Microsoft Security Team (@JSECTEAM) December 12, 2023

◆Windows 11 v23H2, v22H2, v21H2
Maximum severity:
emergency

Biggest impact:
Enables remote code execution

Related Knowledge Base or Support Web Pages:
v23H2, v22H2 5033375
v21H2 5033369

◆Windows 10 v22H2, v21H2
Maximum severity:
emergency

Biggest impact:
Enables remote code execution

Related Knowledge Base or Support Web Pages:
5033372

◆Windows Server 2022,23H2 (including Server Core installation)
Maximum severity:
emergency

Biggest impact:
Enables remote code execution

Related Knowledge Base or Support Web Pages:
Windows Server 2022 5033118
Windows Server 2022 23H2 5033383

◆Windows Server 2019, 2016 (including Server Core installation)
Maximum severity:
emergency

Biggest impact:
Enables remote code execution

Related Knowledge Base or Support Web Pages:
Windows Server 2019 5033371
Windows Server 2016 5033373

◆Microsoft Office
Maximum severity:
important

Biggest impact:
information leak

Related Knowledge Base or Support Web Pages:
https://learn.microsoft.com/officeupdates

◆Microsoft Dynamics 365
Maximum severity:
emergency

Biggest impact:
denial of service

Related Knowledge Base or Support Web Pages:
https://learn.microsoft.com/dynamics365

◆Microsoft Azure
Maximum severity:
emergency

Biggest impact:
Elevation of privilege

Related Knowledge Base or Support Web Pages:
https://learn.microsoft.com/azure

◆Microsoft Malware Protection Platform
Maximum severity:
important

Biggest impact:
denial of service

Related Knowledge Base or Support Web Pages:
https://learn.microsoft.com/system-center

Windows Update will be released on the second Tuesday of every month, American time, and the next update is scheduled to be released on Wednesday, January 10, 2024, Japan time.