alert ip any any -> $HOME_NET any (msg:"ET EXPLOIT FreeBSD rtsold DNSSL Remote Code Execution (CVE-2025-14558)"; content:"|1f|"; pcre:"/^.{7,64}[\x3b\x26\x60\x7c\x24]/R"; icmpv6.hdr; content:"|86 00|"; startswith; reference:url,github.com/JohannesLks/CVE-2025-14558; reference:cve,2025-14558; classtype:bad-unknown; sid:2066447; rev:1; metadata:attack_target Client_and_Server, created_at 2025_12_23, cve CVE_2025_14558, deployment Perimeter, deployment Internal, performance_impact Moderate, confidence Medium, signature_severity Major, updated_at 2025_12_23, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)