alert tcp any any -> $HOME_NET 23 (msg:"ET EXPLOIT Telnet SLC Option Data Buffer Overflow Attempt (CVE-2026-32746)"; flow:established,to_server; content:"|ff fa 22|"; fast_pattern; content:"|ff f0|"; distance:109; reference:url,labs.watchtowr.com/a-32-year-old-bug-walks-into-a-telnet-server-gnu-inetutils-telnetd-cve-2026-32746/; reference:cve,2026-32746; classtype:web-application-attack; sid:2068415; rev:1; metadata:affected_product telnetd, attack_target Server, tls_state plaintext, created_at 2026_03_25, cve CVE_2026_32746, deployment Perimeter, deployment Internal, performance_impact Low, confidence Medium, signature_severity Major, tag Exploit, updated_at 2026_03_25, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)