Is port 5938 (TeamViewer) dangerous?

Port 5938 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 5938 be open on my firewall?

Port 5938 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 5938 use?

Port 5938 (TeamViewer) uses the TCP/UDP transport protocol and falls under the Remote Access category.

:5938 (TCP/UDP)

TeamViewer

Medium Risk

TCP/UDP — Remote Access

Port Overview

Port Number 5938

Service Name TeamViewer

Transport Protocol TCP/UDP

Category Remote Access

Security Risk Medium

Port Range Registered (1024-49151)

What is Port 5938?

Port 5938 is the primary port used by TeamViewer for remote desktop and remote support connections. TeamViewer uses this port for encrypted communications with its relay servers, with fallback to port 443 and 80 if blocked. TeamViewer connections are proxied through TeamViewer's infrastructure, eliminating the need for inbound port forwarding.

TCP/UDP Remote Access Commonly Used

Security Considerations

Port 5938 (TeamViewer) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.

Recommendation: Keep the service updated. Monitor logs for unusual activity.

Related Ports — Remote Access

22 SSH 23 Telnet 57 Private Terminal Access 89 SU/MIT Telnet Gateway 95 SUPDUP 107 Remote Telnet 177 XDMCP 219 Uarps

Related Terms

SSL/TLS Certificate DDoS DNS Spoofing Encryption Firewall HTTPS