KB5002800: fixes the GB18030-2022 certificate issue

**Description of the security update for SharePoint Server Subscription Edition: November 11, 2025 (KB5002800)

**Improvements and fixes
This security update introduces the SharePoint Server Subscription Edition Version 25H2 feature update. This 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 25H2.

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

• This update fixes the GB18030-2022 certificate issue.
• This update fixes an issue in which the "Edit" role definition that's created in SharePoint 2007 doesn't import into the SharePoint Subscription Edition environment.