Exploiting the ssh-20-cisco-125 vulnerability requires an attacker to send a specially crafted SSH packet to a vulnerable Cisco device. The packet must be designed to trigger a buffer overflow condition, which can allow the attacker to execute arbitrary code on the device.

If your security scans are flagging the "Cisco-1.25" banner, prioritize the following: SSH vulnerability - Cisco Community

If you have been scanning your network or reviewing security logs recently, you may have encountered the string SSH-2.0-Cisco-1.25

) that identifies a device as running a proprietary Cisco SSH stack. Devolutions Forum Security scanners like McAfee Foundstone

Cisco 2500 Series Wireless LAN Controllers (e.g., model 2504) running specific AireOS versions. Protocol: SSHv2 (SSH version 2) Common Search Terms: cisco-sa-20190417-wlc-ssh , CSCvj97874 , ssh20cisco125