Ssh-2.0-cisco-1.25 Vulnerability __hot__ Site

Recent reports have identified a critical vulnerability (CVSS 10.0) in certain Cisco products using the Erlang/OTP SSH implementation. It allows unauthenticated remote code execution by sending connection protocol messages before authentication occurs.

: There is no separate “SSH-2.0-Cisco-1.25” CVE . Treat this banner as a red flag indicating you should verify your device’s IOS version against historical Cisco SSH DoS vulnerabilities. If you need the exact fixed IOS version for your hardware, provide the full show version output. ssh-2.0-cisco-1.25 vulnerability

The string is a version identifier frequently returned by the Secure Shell (SSH) server on Cisco IOS and IOS XE devices during a protocol handshake. While this specific string describes the Cisco implementation of the SSH-2.0 protocol rather than a single vulnerability, devices reporting this version have recently been linked to a maximum-severity flaw (CVSS 10.0) in the underlying Erlang/OTP SSH server implementation. The Critical Erlang/OTP SSH Vulnerability Treat this banner as a red flag indicating

To prevent similar vulnerabilities in the future, administrators should: unpatched software flaw. Rather

The most critical contemporary vulnerability associated with Cisco SSH services is the (CVE-2023-48795), which affects various Cisco platforms including Catalyst switches and XR routers. Key Vulnerabilities for Cisco SSH

The short answer is more nuanced. The "ssh-2.0-cisco-1.25 vulnerability" is not a singular, unpatched software flaw. Rather, it is a associated with specific Cisco operating systems (primarily older versions of Cisco IOS and Cisco NX-OS) that historically contained several known, documented vulnerabilities.