ET EXPLOIT Bloomberg Comdb2 net_connectmsg Protocol Buffer Message Null Pointer Dereference (CVE-2025-36520)

Query · suricata

flow:established,to_server;
dsize:7;
content:"|00 2a 00 00 00 01 00|";
target:dest_ip;
Raw source ET EXPLOIT Bloomberg Comdb2 net_connectmsg Protocol Buffer Message Null Pointer Dereference (CVE-2025-36520) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp any any -> $HOME_NET 19000 (
    msg:"ET EXPLOIT Bloomberg Comdb2 net_connectmsg Protocol Buffer Message Null Pointer Dereference (CVE-2025-36520)";
    flow:established,to_server;
    dsize:7;
    content:"|00 2a 00 00 00 01 00|";
    reference:url,talosintelligence.com/vulnerability_reports/TALOS-2025-2197;
    reference:cve,2025-36520;
    classtype:attempted-user;
    sid:2063851; rev:1;
    metadata:attack_target Networking_Equipment, created_at 2025_07_31, cve CVE_2025_36520, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, updated_at 2025_07_31;
    target:dest_ip;
)

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