← Port Encyclopedia
3333
DEC-Notes
TCP
Development
Medium Risk
DEC Notes — also common for development servers
🔍 How to Scan Port 3333
nmap -sV -p 3333 target
nmap -sV -sC --script=banner -p 3333 target
nc -zv target 3333
🛡️ Security Considerations
- Scan port 3333 with
nmap -sVto identify the exact service and version - If DEC-Notes is not needed, close or firewall this port immediately
- Check for default credentials if a management interface runs on this port
- Use
searchsploit dec-notesto find known exploits - Monitor traffic on port 3333 with Wireshark or tcpdump for anomalies
- Ensure the service is patched to the latest version to prevent known CVE exploitation