CyberHunter
// Gaming

Port 8767: Online mobile multiplayer game

Port 8767 is assigned by IANA to core-of-source (Online mobile multiplayer game).

8767

How core-of-source works

Gaming
playergame serverposition, input, state × 60 / s playerserver60 updates / s

The game client and server exchange small updates many times per second over port 8767.

Transport
TCP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Gaming
01 Security

Is port 8767 dangerous?

We have no specific security note for port 8767. Its risk depends on the program actually listening on it. General advice for gaming services:

  • Keep game servers and their plugins updated.
  • Rate-limit queries to limit DDoS amplification.
  • Run game servers under an unprivileged account.
02 Registry

IANA registry entries for port 8767

ServicePortTransportDescriptionReferenceUpdated
core-of-source 8767 TCP Online mobile multiplayer game - 2019-07-24
-8767-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 8767, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8767'      # process listening on 8767
sudo lsof -nP -i :8767

macOS

sudo lsof -nP -i :8767

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8767 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8767
netstat -ano | findstr :8767

From another machine

nmap -p 8767 -sV <host>
nc -zv <host> 8767

Block it in the firewall

sudo ufw deny 8767/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8767" -Direction Inbound -LocalPort 8767 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8767 used for?

Port 8767 is assigned by IANA to core-of-source (Online mobile multiplayer game).

Is port 8767 TCP or UDP?

Port 8767 is registered for TCP.

Is it safe to open port 8767?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Keep game servers and their plugins updated.

How do I check if port 8767 is open?

On Linux run "ss -ltnup 'sport = :8767'", on macOS "lsof -nP -i :8767", and on Windows "netstat -ano | findstr :8767" to see the local process. From another machine, "nmap -p 8767 <host>" shows whether it is reachable.

05 Related