The following is a list of updates for Audit and Control Management Server 2013 (ACM) and Discovery and Risk Assessment Server 2013 (DRA). The list will be updated each time a new hotfix is released for these products. You can compare the KB numbers in this list with the updates installed on your machine to make sure you have all the updates.
KB2863865 - ACM Service Pack 1 (February 25, 2014)
KB2837623 - April 8, 2014 update for ACM
KB2881010 - October 14, 2014 update for ACM
KB2899503 - May 12, 2015 update for ACM
KB2881006 - May 12, 2015 update for DRA
KB3039793 - April 5, 2016 update for ACM