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Rev: 1 • Jan 12, 2026, 12:00 PMET WEB_SPECIFIC_APPS UTT formPictureUrl importpictureurl Parameter Buffer Overflow Attempt (CVE-2026-0841)
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS UTT formPictureUrl importpictureurl Parameter Buffer Overflow Attempt (CVE-2026-0841)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:22; content:"/goform/formPictureUrl"; fast_pattern; http.request_body; content:"importpictureurl|3d|"; pcre:"/^[^&]{100,}(?:&|$)/R"; reference:url,github.com/GUOTINGTING2297/cve/blob/main/1234/31.md; reference:cve,2026-0841; classtype:web-application-attack; sid:2066677; rev:1; metadata:affected_product UTT, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_01_12, cve CVE_2026_0841, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_01_12, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)
Jan 12, 2026, 12:00 PM
Jan 12, 2026, 12:00 PM
Jan 12, 2026, 10:34 PM
Jan 13, 2026, 10:34 PM
rules/emerging-web_specific_apps.rules