Description of the security update for SharePoint Server 2019: July 21, 2025 (KB5002754)

Summary

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

Notes:

This is build 16.0.10417.20037 of the security update package.
To apply this security update, you must have the release version of Microsoft SharePoint Server 2019 installed on the computer.
To successfully run this security update, you must also have SharePoint Server 2019 Language Pack (KB5002753) installed on the computer.

Known issues in this update

Users may experience an issue when loading some SharePoint page resources, and the following error message is logged in the SharePoint Unified Logging System (ULS) logs:

[SPRequestModule.PostAuthenticateRequestHandler] Risky signout bypass limited (Access Denied). request path: '<resource path>'.

To work around this issue, farm administrators can add the resource path in the AllowList by running the following PowerShell commands:

$farm = get-spfarm $farm.AddGenericAllowedListValue("SignOutRefererAllowList", "<resource path>") $farm.Update() iisreset

To check whether the resource path exists in the AllowList, run:

$farm.ContainsGenericAllowedListValue("SignOutRefererAllowList", "<resource path>")

To remove the resource path from the AllowList, run:

$farm.RemoveGenericAllowedListValue("SignOutRefererAllowList", "<resource path>")

Note: Make sure that the resource path is valid and as expected before you follow the instructions to configure it.

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 2019 (KB5002754)

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 5002741.

File hash information

File name	SHA256 hash
sts2019-kb5002754-fullfile-x64-glb.exe	7F0CDCF578587A340DC66CDF1C54B7DB761B010931C6B6E4A83969D6DEE5A0EA

File information

Download the list of files that are included in security update 5002754.

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.

Date	Description
July 28, 2025	Added a "Known issues in this update" section to describe an issue that users may experience.