Description of the security update for SharePoint Server 2016 Language Pack: October 14, 2025 (KB5002787)

Summary

Important:

If you're running Microsoft SharePoint Server 2013-type workflows, you mustinstall the August 2025 update for SharePoint Workflow Manager to your farm before you install this cumulative update.
If you're currently running the Classic version of Workflow Manager, you must enable the debug flag to continue using it. $farm = Get-SPFarm

$farm.ServerDebugFlags.Add(53601)

$farm.update()

iisreset

This security update resolves a Microsoft Excel Information Disclosure Vulnerability and Microsoft Word Remote Code Execution Vulnerability. To learn more about the vulnerabilities, see the following security advisories:

Notes:

This is build 16.0.5522.1000 of the security update package.
To apply this security update, you must have the release version of Microsoft SharePoint 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 the following:

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 Learn articles:

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.

Download security update for Microsoft SharePoint Server 2016 Language Pack (KB5002787)

More information

Security update deployment information

For deployment information about this update, see Deployments - Security Update Guide.

Security update replacement information

This security update replaces previously released security update 5002777.

File hash information

File name	SHA256 hash
wssloc2016-kb5002787-fullfile-x64-glb.exe	7FB6AD53D8B86EB76EFF1007ABFB0613D0B05268D49616423F7C3A308BB51972

File information

Download the list of wss-x-none.msp files that are included in security update 5002787

Download the list of wssmui-en-us.msp files that are included in security update 5002787

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security