We are practically new with Exchange 2013 and we're currently running on RTM version. I understand there is list of updates available already for Exchange 2013 in a form of CU (Cumulative Updates). If I'm not mistaken it is already in its 9th CU. My question is, is it possible to update our Exchange 2013 RTM directly to CU9 without passing thru the earlier CUs? If so,  we would appreciate if you could provide us a quick guide for the upgrade. Thank you very much!

We are practically new with Exchange 2013 and we're currently running on RTM version. I understand there is list of updates available already for Exchange 2013 in a form of CU (Cumulative Updates). If I'm not mistaken it is already in its 9th CU. My question is, is it possible to update our Exchange 2013 RTM directly to CU9 without passing thru the earlier CUs? If so,  we would appreciate if you could provide us a quick guide for the upgrade. Thank you very much!

Yes, go straight to CU9

http://exchangeserverpro.com/exchange-2013-installing-cumulative-updates/