Description of the security update for SharePoint Enterprise Server 2016: January 11, 2022 (KB5002113)

Summary

This security update resolves a Microsoft Word remote code execution vulnerability, Microsoft Office remote code execution vulnerability, and Microsoft SharePoint Server remote code execution vulnerability. To learn more about the vulnerabilities, see the following security advisories:

• Microsoft Common Vulnerabilities and Exposures CVE-2022-21842

• Microsoft Common Vulnerabilities and Exposures CVE-2022-21840

• Microsoft Common Vulnerabilities and Exposures CVE-2022-21837

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:

• New features included in the November 2016 Public Update for SharePoint Server 2016 (Feature Pack 1)

• New features included in the September 2017 Public Update for SharePoint Server 2016 (Feature Pack 2)

Improvements and fixes

This security update contains improvements and fixes for the following nonsecurity issues in SharePoint Server 2016:

• To better protect and strengthen the security of SharePoint, SharePoint now restricts access to its Web.config files. Users cannot access Web.config files unless they're local administrators, farm administrators, or managed by SharePoint. This change does not impact standard SharePoint functionality. For more information about this improvement, see Permissions of Web.config files are restricted in SharePoint Server (KB5010126).

• Fixes an issue in which a double URL encoding occurs when you try to open documents in a client application in Google Chrome from Mac devices.

• Fixes an issue in which an error occurs when you share a folder in a list under a subsite.

• Fixes an issue in which the Word Automation Services assembly (Sword.dll) is not updated to the expected version.

• Fixes an issue in which selecting the New button in the form library opens a dialog box to upload files instead of opening the InfoPath client application.

This security update also provides security improvements for Project Server 2016.

How to get and install the update

More information

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security

Change history

 The following table summarizes some of the most important changes to this topic.