There is NO CAD starting version 11.x only Finesse Desktop is there. CAD and Finesse co-residency is only there till version 10.6 and not beyond that.
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_11_0/release/docs/UCCX_BK_R7697E6E_00_release-notes-for-uccx-solution/UCCX_BK_R7697E6E_00_release-notes-for-uccx-solution_chapter_01.html#UCCX_TP_DAAF2B6F_00
As far as CAD to Finesse migration utility is concerned, there seems to be one as per the below Design Guide but is not available on Cisco Developer Network better to check with TAC and confirm:
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_10_6/design/guide/UCCX_BK_CBB99111_00_cisco-unified-contact-center-express/UCCX_BK_CBB99111_00_cisco-unified-contact-center-express_appendix_0111.html#UCCX_RF_F672AC20_00
Regards
Deepak