Hi ceantuco,
please find the correct Updates here.
These SUs are available for the following specific builds of Exchange Server:
- Exchange Server 2013 https://www.microsoft.com/en-us/download/details.aspx?familyID=479a8745-ec96-4634-9935-80aa6131737b
- Exchange Server 2016 https://www.microsoft.com/en-us/download/details.aspx?familyID=4d630555-9c16-46fe-b72b-aec651b71efb and https://www.microsoft.com/en-us/download/details.aspx?familyID=2961d7a6-c089-4fe6-8c4c-c100878950b8
- Exchange Server 2019 https://www.microsoft.com/en-us/download/details.aspx?familyID=edb31b02-83ab-4133-b327-29f3799e4861 and https://www.microsoft.com/en-us/download/details.aspx?familyID=1d34be10-1762-44dd-ad87-510441e3798f
Microsoft please fix the wrong links.