KB5002803: This update fixes the GB18030-2022 China certificate issue.
Description of the security update for SharePoint Server 2019: November 11, 2025 (KB5002803)
Improvements and fixes
This security update contains improvements and fixes for the following nonsecurity issue in SharePoint Server 2019.
- This update fixes the GB18030-2022 China certificate issue.
- This update requires users to specify the library for storing the audit logs before they proceed.

