December 12, 2017—KB4054520 (Monthly Rollup)

Applies to: Windows Server 2012Windows Embedded 8 Standard

Improvements and fixes


This security update includes improvements and fixes that were a part of update KB4050945 (released November 27, 2017) and addresses the following issues:

  • Addresses additional issues with updated time zone information.

  • Security updates to the Microsoft Scripting Engine and Windows Server.

For more information about the resolved security vulnerabilities, see the Security Update Guide.

Known issues in this update


Microsoft is not currently aware of any issues with this update.

How to get this update


This update will be downloaded and installed automatically from Windows Update. To get the standalone package for this update, go to the Microsoft Update Catalog website.

File information

For a list of the files that are provided in this update, download the file information for update 4054520.