Microsoft has released Cumulative Update #7 for SQL Server 2012 Service Pack 2.
This update has 38 fixes, including the QFE security fix from MS15-058. If you've installed MS15-058 (either the QFE – 11.0.5613 – or the GDR – 11.0.5343), you can still install this cumulative update. If you haven't yet installed the security fix, you can skip it and just install this cumulative update.
(For more info on MS15-058, see KB #3065718, New Vulnerability Affecting SQL Server 2008, 2008 R2, 2012, and 2014, and Latest Builds of SQL Server 2012.)