Description of the security update for SharePoint Server Subscription Edition: November 11, 2025 (KB5002800)

Summary

Important:

If you're currently running SharePoint Workflow Manager, you must install the August 2025 update for SharePoint Workflow Manager to your farm before you install this cumulative update.
If you're currently running the SharePoint 2013 Workflow, you have to enable the debug flag in order to continue using it.$farm = Get-SPFarm

$farm.ServerDebugFlags.Add(53601)

$farm.update()

iisreset

This security update resolves a Microsoft SharePoint Remote Code Execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2025-62204.

Notes:

This is build 16.0.19127.20338 of the security update package.
To apply this security update, you must have the release version of Microsoft SharePoint Server Subscription Edition installed on the computer.

Improvements and fixes

This security update introduces the SharePoint Server Subscription Edition Version 25H2 feature update. This feature update will be included in all SharePoint Server Subscription Edition public updates going forward. For more information about this feature update, see New and improved features in SharePoint Server Subscription Edition Version 25H2.

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

This update fixes the GB18030-2022 certificate issue.
This update fixes an issue in which the "Edit" role definition that's created in SharePoint 2007 doesn't import into the SharePoint Subscription Edition environment.

Known issues in this update

Users may see “4gab5" event tags logged in the SharePoint Unified Logging System (ULS) logs when they access sitedirectorysettings.aspx by using ‘set other host’. This issue occurs because of the enhanced security that restricts access to sitedirectorysettings.aspx to the current farm host.

To work around this issue, the farm administrator can add the new domain to the AdditionalValidSPFarmHosts in the farm by running the following PowerShell commands:

add-pssnapin *

$f = get-spfarm

$f.AddGenericAllowedListValue("AdditionalValidSPFarmHosts", "your_additional_farm_host")

$f.update()

iisreset

Note: Make sure that the setting host is safe before you follow the instructions to add the new domain.

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 Subscription Edition (KB5002800).

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 5002786.

File hash information

File name	SHA256 hash
uber-subscription-kb5002800-fullfile-x64-glb.exe	EC2E0E2F02C90CD2D71FF37E1977C85576168C5112CB4F3C568A2760158BE688

File information

Download the list of files that are included in security update 5002800.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security