Description of the security update for SharePoint Enterprise Server 2016: September 8, 2020

Applies to: SharePoint Server 2016


This security update resolves remote code execution vulnerabilities that exists in Microsoft Excel or Word if the software does not check the source markup of an application package. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2020-1210 and Microsoft Common Vulnerabilities and Exposures CVE-2020-1218.

Note To apply this security update, you must have the release version of Microsoft SharePoint Enterprise Server 2016 installed on the computer.

This public update delivers Feature Pack 2 for SharePoint Server 2016. Feature Pack 2 contains the following feature:

  • SharePoint Framework (SPFx)

This public update also delivers all the features that were included in Feature Pack 1 for SharePoint Server 2016, including:

  • Administrative Actions Logging
  • MinRole enhancements
  • SharePoint Custom Tiles
  • Hybrid Taxonomy
  • OneDrive API for SharePoint on-premises
  • OneDrive for Business modern user experience (available to Software Assurance customers)

The OneDrive for Business modern user experience requires an active Software Assurance contract at the time that the experience is enabled, either by installation of the public update or by manual enablement. If you don't have an active Software Assurance contract at the time of enablement, you must turn off the OneDrive for Business modern user experience.

For more information, see the following Microsoft Docs articles:

Improvements and fixes

This security update contains fixes for the following nonsecurity issues:
  • Fixes an issue in which the "shared with other users" context menu in subfolders doesn't work in classic view.
  • Fixes an issue in which a file is uploaded to the wrong folder in classic view of OneDrive for Business.

Note To fix these issues completely, you have to install KB 4484506 together with this update.

How to get and install the update

Method 1: Microsoft Update

This update is available from Microsoft Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Method 3: Microsoft Download Center

You can get the standalone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

More information

Security update deployment information

For deployment information about this update, see security update deployment information: September 8, 2020.

Security update replacement information

This security update replaces previously released security update 4484473.

File hash information

File name SHA1 hash SHA256 hash
wssloc2016-kb4484512-fullfile-x64-glb.exe 4753043E6A02E9E47AEBBCBFFCE85D03B92E6C7E 2A129EFE1F522F8858A40837F50EE3FEB23162A6B3EA60F482EB3EBE5463209E

File information

Download the list of files that are included in security update 4484512.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security