← Port Encyclopedia
877

Port-877

TCP
System Low Risk
Reserved or unassigned port 877 — may appear in network scans as open, closed, or filtered

🔍 How to Scan Port 877

nmap -sV -p 877 target
nmap -sV -sC --script=banner -p 877 target
nc -zv target 877

🛡️ Security Considerations

  • Scan port 877 with nmap -sV to identify the exact service and version
  • If Port-877 is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit port-877 to find known exploits
  • Monitor traffic on port 877 with Wireshark or tcpdump for anomalies
  • Ensure the service is patched to the latest version to prevent known CVE exploitation
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