Description of the security update for SharePoint Enterprise Server 2016: January 12, 2021

Applies to: SharePoint Server 2016


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 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 enables the Search administrator to use the case-insensitive crawl behavior instead of case-sensitive crawling by setting the CaseSensitiveUrls property to 0. To do this, use the following PowerShell script:

$ssa = Get-SPEnterpriseSearchServiceApplication$ssa.SetProperty("CaseSensitiveUrls", 0)$ssa.Update()

This update also contains a fix for the following nonsecurity issue in Project Server 2016:

  • If you delete many thousands of timesheets, the process might be slow.

    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: January 12, 2021.

    Security update replacement information

    This security update replaces previously released security update 4486753.

    File hash information

    File name SHA1 hash SHA256 hash
    sts2016-kb4493163-fullfile-x64-glb.exe 4807D885EB29946889DFEC19E89E89CF866AE5C4 DA066E9BBA80180187668D03BD1A95FBE5C2CC998BFFB0FD13CD03CDA2DCDE36

    File information

    Download the list of files that are included in security update 4493163.

    Information about protection and security

    Protect yourself online: Windows Security support

    Learn how we guard against cyber threats: Microsoft Security