Cisco addressed SSH vulnerabilities in later releases. The 1.25 version was superseded by 1.29 , 1.35 , and eventually modern IOS versions that no longer suffer from these weaknesses.
banner is a signal that your device might be running outdated firmware. By upgrading your software ssh-2.0-cisco-1.25 vulnerability
Here’s a twist that penetration testers love: . Cisco addressed SSH vulnerabilities in later releases
The SSH-2.0-Cisco-1.25 vulnerability is a weakness in the Cisco SSH implementation that allows an attacker to exploit the protocol's authentication mechanism. Specifically, the vulnerability occurs when an attacker sends a specially crafted SSH packet to a device running the vulnerable software. This packet can cause the device to crash or, in some cases, allow the attacker to gain unauthorized access to the device. in some cases