alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS SonicWall Pre-Auth Heap-Based Buffer Overflow (CVE-2025-40597)"; flow:established,to_server; http.uri; content:"/__api__/"; fast_pattern; http.host; bsize:>128; reference:url,labs.watchtowr.com/stack-overflows-heap-overflows-and-existential-dread-sonicwall-sma100-cve-2025-40596-cve-2025-40597-and-cve-2025-40598/; reference:cve,2025-40597; classtype:web-application-attack; sid:2063848; rev:1; metadata:affected_product SonicWall, attack_target Server, tls_state TLSDecrypt, created_at 2025_07_31, cve CVE_2025_40597, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, updated_at 2025_07_31, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)