CyberHunter
Local dataset, no network
// Other services

Port 11876: X2E Xoraya Multichannel protocol

Port 11876 is assigned by IANA to xoraya (X2E Xoraya Multichannel protocol).

11876

How xoraya works

Other services
client:11876xorayaresponse client:11876xorayaresponse

The client sends a request to port 11876 and the xoraya service answers.

Transport
TCP · UDP
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
Other services
01 Security

Is port 11876 dangerous?

We have no specific security note for port 11876. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 11876

ServicePortTransportDescriptionReferenceUpdated
xoraya 11876 TCP, UDP X2E Xoraya Multichannel protocol - 2010-09-13

// source: IANA service name and port number registry

03 Check it

Which program uses port 11876, and is it reachable?

Linux

sudo ss -ltnup 'sport = :11876'      # process listening on 11876
sudo lsof -nP -i :11876

macOS

sudo lsof -nP -i :11876

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 11876 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 11876
netstat -ano | findstr :11876

From another machine

nmap -p 11876 -sV <host>
sudo nmap -sU -p 11876 <host>
nc -zv <host> 11876

Block it in the firewall

sudo ufw deny 11876/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 11876" -Direction Inbound -LocalPort 11876 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 11876 used for?

Port 11876 is assigned by IANA to xoraya (X2E Xoraya Multichannel protocol).

Is port 11876 TCP or UDP?

Port 11876 is registered for TCP and UDP.

Is it safe to open port 11876?

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. Close the port if nothing on the host needs it.

How do I check if port 11876 is open?

On Linux run "ss -ltnup 'sport = :11876'", on macOS "lsof -nP -i :11876", and on Windows "netstat -ano | findstr :11876" to see the local process. From another machine, "nmap -p 11876 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

Latest vulnerability news

All news