Exchange 2013 CU10:
Read more here: https://support.microsoft.com/en-us/kb/3078678
Download it here: http://www.microsoft.com/en-us/download/details.aspx?id=49044
Exchange 2010 SP3 UR11:
Read more here: https://support.microsoft.com/en-us/kb/3078674
Download it here: http://www.microsoft.com/en-us/download/details.aspx?id=49043