CyberHunter
Local dataset, no network
// Other services

Port 14141: VCS Application

Port 14141 is assigned by IANA to vcs-app (VCS Application).

14141

How vcs-app works

Other services
client:14141vcs-appresponse client:14141vcs-appresponse

The client sends a request to port 14141 and the vcs-app 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 14141 dangerous?

We have no specific security note for port 14141. 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 14141

ServicePortTransportDescriptionReferenceUpdated
vcs-app 14141 TCP, UDP VCS Application - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 14141, and is it reachable?

Linux

sudo ss -ltnup 'sport = :14141'      # process listening on 14141
sudo lsof -nP -i :14141

macOS

sudo lsof -nP -i :14141

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 14141 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 14141
netstat -ano | findstr :14141

From another machine

nmap -p 14141 -sV <host>
sudo nmap -sU -p 14141 <host>
nc -zv <host> 14141

Block it in the firewall

sudo ufw deny 14141/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 14141" -Direction Inbound -LocalPort 14141 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 14141 used for?

Port 14141 is assigned by IANA to vcs-app (VCS Application).

Is port 14141 TCP or UDP?

Port 14141 is registered for TCP and UDP.

Is it safe to open port 14141?

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 14141 is open?

On Linux run "ss -ltnup 'sport = :14141'", on macOS "lsof -nP -i :14141", and on Windows "netstat -ano | findstr :14141" to see the local process. From another machine, "nmap -p 14141 <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

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