Description of the security update for SharePoint Foundation 2013: December 8, 2020

Applies to: Microsoft SharePoint Foundation 2013 Service Pack 1


This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see the following security advisories:

Note To apply this security update, you must have the release version of Service Pack 1 for Microsoft SharePoint Foundation 2013 installed on the computer.

Improvements and fixes

This security update contains fixes for the following nonsecurity issues. To fix these issues completely, you have to install KB 4486758 together with this update.:
  • Fixes an issue in which the navigation pane is hidden if users change some Search Admin settings in a Search Service Application.
  • Fixes an issue in which Business Connectivity Services (BCS) crawls of the .NET Connectivity Assemblies, Web services, or Custom type don't work.

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: December 8, 2020.

Security update replacement information

This security update replaces previously released security update 4486733.

File hash information

File name SHA1 hash SHA256 hash
sts2013-kb4493138-fullfile-x64-glb.exe B4C0D1CE4FEC411072E63148BD70E54A8FAE261D B7FC258298EBCA884AA60048706F0AC56C93E8E9DBCAEF1F95A22036284C97C7

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security