Updating Office Web Apps in SharePoint 2010

I am having a very difficult time finding information on how to patch OWA for SharePoint Server 2010 in the same manner as installing CU's.  I am under the impression from other forums posts I've read that OWA hotfixes are NOT included in SharePoint CU's (please correct me if I'm wrong).

Currently, after installing SharePoint SP2, my OWA version is 14.0.7015.1000.  I have installed multiple CUs since then (the last being the July 2014 CU).  And while the versions of other products have increased accordingly all of the products listed under "Microsoft Office Web Apps" have remained version 14.0.7015.100.

I know that there have been hotfixes for OWA posted on the Security Bulletin list.  However, apart from going through this list one MS at a time and looking for OWA references, is there any sort of master list/CU/patch table that I could use to determine which hotfixes I am missing and where to get them?