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Summary

This security update resolves a Microsoft SharePoint denial of service vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2023-33129.

Notes: 

  • This is build 16.0.5400.1001 of the security update package.

  • To apply this security update, you must have the release version of Microsoft SharePoint Enterprise 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:

  • 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:

Improvements and fixes

This security update fixes the "HTTP Error 503" known issue that's described in KB 5026765. The issue was introduced in the April 11, 2023, security update for SharePoint Server 2016 (KB 5002385). This update ensures that the Windows Antimalware Scan Interface (AMSI) integration module is configured only on versions of Windows Server that support AMSI, such as Windows Server 2016 and later. This update will remove the AMSI integration module configuration, if it exists, from versions of Windows Server that don't support AMSI, such as Windows Server 2012 R2.

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.

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 5002397.

File hash information

File name

SHA256 hash

sts2016-kb5002404-fullfile-x64-glb.exe

42A834F460BA0CEA4AC6C8A05615C1ADFD7DF4494F4AFFA5A18108D2F20CC443

File information

Download the list of files that are included in security update 5002404.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security

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