Applies To
SharePoint Server 2019

Summary

Important: 

  • If you're running 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 Microsoft Word Remote Code Execution vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2026-20948.​​​​​​​

Notes: 

  • This is build 16.0.10417.20083 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.

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 5002802.

File hash information

File name

SHA256 hash

wssloc2019-kb5002823-fullfile-x64-glb.exe

847D2018BDA49B838C3985BDB30F077E682839AA965EDA4D375CE9B75E03E792

File information

Download the list of files that are included in security update 5002823.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security

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