In this video, we cover how to install this SharePoint Cumulative Update. This will get your server to the build of 15.0.4867.1002 by applying KB3118366.
The link to the SharePoint 2013 build list.
Link to Russ Maxwell PowerShell script
Link to series on Installing SharePoint Server 2013 the correct way.
For Azure and SharePoint Consulting check out Bold Zebras.