alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS D-Link DI-8100 url_rule.asp Stack Buffer Overflow (CVE-2026-7854)"; flow:established,to_server; http.uri; bsize:13; content:"/url_rule.asp"; fast_pattern; http.request_body; content:"name|3d|"; pcre:"/^[^&]{9,}/R"; http.method; content:"POST"; reference:url,github.com/draw-ctf/report/blob/main/DI-8100/url_rule_asp_overflow.md; reference:cve,2026-7854; classtype:web-application-attack; sid:2069184; rev:1; metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state TLSDecrypt, created_at 2026_05_06, cve CVE_2026_7854, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, updated_at 2026_05_06; target:dest_ip;)