A 7th Cumulative Update is available for those users still on the RTM branch of SQL Server 2012. This is in keeping with Microsoft's Incremental Service Modelling.
You may have to restart your machine before the update is applied. Please check that the hotfixes which are included in this cumulative update package are relevant to you, though some of these seem fairly important. This CU has 17 fixes, and the version number will now be 11.0.2405.