← Port Encyclopedia
3784
BFD
TCP
Network
Medium Risk
Bidirectional Forwarding Detection — fast failure detection
🔍 How to Scan Port 3784
nmap -sV -p 3784 target
nmap -sV -sC --script=banner -p 3784 target
nc -zv target 3784
🛡️ Security Considerations
- Scan port 3784 with
nmap -sVto identify the exact service and version - If BFD is not needed, close or firewall this port immediately
- Check for default credentials if a management interface runs on this port
- Use
searchsploit bfdto find known exploits - Monitor traffic on port 3784 with Wireshark or tcpdump for anomalies
- Ensure the service is patched to the latest version to prevent known CVE exploitation