https://support.microsoft.com/en-us/topic/june-8-2021-cumulative-update-for-sharepoint-foundation-2013-kb5001957-adedfca4-abdd-4667-a0e7-d30e4b01c915
June 8, 2021, cumulative update for SharePoint Foundation 2013 (KB5001957) - Microsoft Support
cumulative updatefor sharepoint