Summary
Important
If you're currently running SharePoint Workflow Manager, you must installΒ SharePoint Workflow Manager (KB5002799) toΒ your farmΒ before you install this cumulative update.
If you're currently running the Classic version of Workflow Manager,Β 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 Microsoft SharePoint Server Remote Code Execution vulnerability and Microsoft SharePoint Server Spoofing vulnerability. ToΒ learn more about theΒ vulnerabilities, see the following security advisories:
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45453ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-48562ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-47640ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-48560ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-47641ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45481ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-47639ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-47638ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-47636ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-47634ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-47637ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-47298ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45454ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45483ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45465ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-4546βββββββββββββ4
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45462ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-44824ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-33113ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45458ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45456ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-44821ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-44819ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45485ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45479ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45484ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45471ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45475ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45468ββββββββββββββ
- Microsoft Common Vulnerabilities and Exposures CVE-2026-45467ββββββββββββββ
- Microsoft SharePoint Remote Code Execution Vulnerability CVE-2026-58644ββββββββββββββ
Note
- This is buildΒ 16.0.19725.20384 of the security update package.
- To apply this security update, you must have the release version ofΒ Microsoft SharePoint Server Subscription EditionΒ installed on the computer.
Improvements and fixes
This security update introduces the SharePoint Server Subscription Edition Version 26H1 feature update. ThisΒ 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 26H1. This linkΒ may be temporarily unavailable and will be active after the maintenance is complete.Β βββββββ
This update fixes the view and edit of multi-value managed metadata fields in the document web part.
- This update fixes text data loss issues that affectΒ web parts on communication sites.
- This update improves focus handling whileΒ the Property Pane is open. This change allowsΒ users to seamlessly return focus to the editor by selecting it.
- This update fixes the GB18030-2022 certification issue.
- This update fixes an issue that causesΒ incorrect characters to appear in the βAbout Meβ section of user profiles in search results.
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, seeΒ Windows Update: FAQ.
Method 2: Microsoft Update Catalog
To get the standalone package for this update, go to theΒ Microsoft Update CatalogΒ 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 updateΒ 5002863.
File hash information
| File name | SHA256 hash |
|---|---|
| uber-subscription-kb5002873-fullfile-x64-glb.exe | 0AA1FF99C920665968D07FD9CFECA6B1A0D0C60EFE0E458774997DFCF27CCE8C |
File information
Download the list of files that are included in Security Update 5002873.
Information about protection and security
Protect yourself online:Β Windows Security support
Learn how we guard against cyber threats:Β Microsoft Security
