Microsoft Monthly Security Update – 2020 Dec 9th

In Cyber Security by Matsco Engineering Team

Microsoft have released a security advisory on the 08th of December 2020 in line with their regular monthly patch schedule which includes a number of updates to address critical vulnerabilities. System / Technology components affected include Microsoft Office, Windows, Extended Security Updates (ESU), Exchange Server, Developer Tools, Microsoft Dynamics, Azure and Browser. These updates address vulnerabilities which may impact Elevation of Privilege, Remote Code Execution, Security Restriction Bypass, Information Disclosure and Spoofing. 

The following operating systems/applications are affected:


  • Microsoft Windows
  • Microsoft Edge (EdgeHTML-based)
  • Microsoft Edge for Android
  • ChakraCore
  • Microsoft Office and Microsoft Office Services and Web Apps
  • Microsoft Exchange Server
  • Azure DevOps
  • Microsoft Dynamics
  • Visual Studio
  • Azure SDK
  • Azure Sphere


Matsco recommends any affected systems are updated as soon as convenient  

Please contact the Matsco Solutions team on the below if you would like any further information or would like to schedule a maintenance.

Beijing  +86 400 120 2782
Hong Kong  +852 8101 8418
London   +44 (0)20 7821 4950
New York  +1 866 446 9226
Singapore  +65 6100 1090

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