https://support.microsoft.com/en-us/topic/description-of-the-security-update-for-sharepoint-server-2019-may-11-2021-kb5001916-9e944275-4d63-446a-8a2e-a264fce1afef
Description of the security update for SharePoint Server 2019: May 11, 2021 (KB5001916) - Microsoft...