alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WEB_SPECIFIC_APPS GeoVision GV-ASWeb <=v6.1.2.0 RCE (CVE-2025-26264)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/ASWeb/bin/ASWebCommon.srf"; fast_pattern; http.cookie; content:"GvWebUser|3d|"; content:"GvServerVersion="; pcre:"/^6\.(?=[0-1]\.[0-9])|^[0-5]\.(?=[0-9]\.[0-9])/R"; http.request_body; content:"action=NT_SetNotificationSetting"; content:"powershell"; nocase; distance:0; reference:cve,2025-26264; reference:url,github.com/DRAGOWN/CVE-2025-26264; classtype:web-application-attack; sid:2066511; rev:1; metadata:affected_product GeoVision, attack_target IoT, tls_state plaintext, created_at 2025_12_30, cve CVE_2025_26264, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_12_30, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)