Using CNUT 1.1 to do software upgrades

ok heres the deal, I am trying to do software upgrades to the canopy network. some sm’s have 3.2 some have 4.1 some have 4.0, and some have 4.2.3. I am trying to get all up to 4.2.3 and am trying to find a better or faster way than ftp and telnet into every single SM. Can I use CNUT to upgrade these older modules? Or do I have to do them manually to 4.2.3 before I can utilize the update features in CNUT1.1