KB5002850: Fixes an issue in which some SharePoint pages don't render

Description of the security update for SharePoint Server 2016: March 10, 2026 (KB5002850)

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

• Microsoft Common Vulnerabilities and Exposures CVE-2026-26114
• Microsoft Common Vulnerabilities and Exposures CVE-2026-26113
• Microsoft Common Vulnerabilities and Exposures CVE-2026-26106
• Microsoft Common Vulnerabilities and Exposures CVE-2026-26105

Notes:

• This is build 16.0.5543.1000 of the security update package.
• To apply this security update, you must have the release version of Microsoft SharePoint 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.

Improvements and fixes
This security update contains improvements and fixes for the following nonsecurity issues in SharePoint Server 2016:

• Fixes an issue in which some SharePoint pages don't render.