However, several critical Cisco SSH-related vulnerabilities were disclosed between 2025 and 2026 that match your search intent. 🛡️ Key Cisco SSH Vulnerabilities (2025–2026)
While "SSH-2.0-Cisco-1.25" itself is just a version indicator, several critical vulnerabilities affect the Cisco SSH stacks that display this or similar banners. Below is a write-up of the most prominent recent vulnerability associated with these service banners. ssh20cisco125 vulnerability exclusive
The most prominent threat associated with this banner is , a vulnerability in the SSH server implementation of Cisco IOS and IOS XE. Leaked from a private forum known for trading
ssh.close() except paramiko.AuthenticationException: print(f"Authentication failed on host") except Exception as e: print(f"Error scanning host: e") a new identifier has surfaced: .
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In the shadowy corridors of network security research, a new identifier has surfaced: . Leaked from a private forum known for trading industrial control system (ICS) exploits, this codename points to what researchers are calling a "catastrophic authentication bypass" affecting over 125 distinct Cisco IOS and IOS-XE firmware versions. Unlike the infamous CVE-2018-0147 (Cisco Smart Install) or CVE-2023-20198 (Privilege Escalation), SSH20CISCO125 targets the Secure Shell (SSH) version 2 implementation—specifically the key exchange ( kex ) and ssh-userauth service layers.