Standard vulnerability scanners that check for known OpenSSH CVEs may miss Cisco-specific SSH vulnerabilities. Organizations must use Cisco’s own security advisories and scanning tools (e.g., Cisco Secure Firewall Management Center) to identify these flaws.
Isolate management planes so that unauthorized external entities cannot attempt connections on Port 22.
--- - name: Patch SSH-2-Cisco-1.25 vulnerability hosts: cisco_devices become: yes ssh20cisco125 vulnerability exclusive
Remote, Authenticated (though some variants allow unauthenticated triggers).
If successfully exploited, the poses several critical risks to network infrastructure: Standard vulnerability scanners that check for known OpenSSH
On , Cisco released an advisory detailing a maximum severity vulnerability (CVE-2025-20309) in Cisco Unified Communications Manager (CUCM) and Unified Communications Manager SME. The vulnerability stems from hard-coded root SSH credentials that cannot be changed or removed by the administrator.
Cisco AsyncOS (specifically Secure Web Appliances and Email Gateways) Cisco Security Advisories --- - name: Patch SSH-2-Cisco-1
When an entity targets a Cisco appliance using SSH parameters, they generally exploit one of three core systemic weaknesses: 1. Cryptographic Downgrade and Weak Ciphers
have identified critical vulnerabilities affecting Cisco products that present this specific banner. Overview of Recent Vulnerabilities A significant vulnerability was disclosed on April 16, 2025 , regarding an Unauthenticated Remote Code Execution (RCE) flaw in the Erlang/OTP SSH server used by multiple Cisco products. Vulnerability Type : Remote Code Execution (RCE). Attack Vector : Remote, unauthenticated.