For users with an active Cisco service contract, the most direct method is through the Cisco Software Download portal: Log in to software.cisco.com using your CCO credentials.
To facilitate the transition to ASA 9.18, Cisco introduced a new ASDM Upgrade Wizard. This tool handles API migrations, making it a prerequisite for anyone moving to more modern ASA firmware. cisco asdm 718 download top
Before downloading, ensure your environment meets the ASDM 7.18 system requirements: For users with an active Cisco service contract,