Description of the security update for SharePoint Server Subscription Edition: April 9, 2024 (KB5002581)

Summary

This security update resolves a Microsoft SharePoint Server spoofing vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2024-26251.

Notes:

• This is build 16.0.17328.20246 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 contains improvements and fixes for the following nonsecurity issues in SharePoint Server Subscription Edition:

• Fixes an issue in which duplicate configuration elements are added to SharePoint Web.config files every time that you run SharePoint upgrade. This activity eventually causes those files to exceed the Web.config file size limitation that’s configured in IIS. This issue generates multiple “HTTP 500.19 - Cannot read configuration file because it exceeds the maximum file size” error messages when you browse a SharePoint website. This fix removes the existing duplicate configuration elements and prevents future duplicates from being added.
• Fixes an issue in which the list web part displays only the last property in all fields that are user columns that have different displayed properties.
• Fixes an issue in which you cannot upload a new file that has an existing name to the document library.
• Fixes an unexpected exception in the aggregated newsfeed feature.
• Changes the name of the capital city of the Republic of Kazakhstan from Nur-Sultan to Astana.
• Improves the reliability of Antimalware Scan Interface (AMSI) integration.

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 5002581 for the 64-bit version of SharePoint Server Subscription Edition

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 5002564.

File hash information

File name	SHA256 hash
uber-subscription-kb5002581-fullfile-x64-glb.exe	0F205ED62D7B11F2E216FE969900E1A7C2C9CF153B2EFA1B966A79B193F88BE0

File information

Download the list of files that are included in security update 5002581.

Information about protection and security

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