Unassigned by IANA; conventionally VNC display :50.
5950 is inside IANA's Unassigned 5915-5962 range. By the RFB convention it is display :50, and hosts that allocate VNC consoles per VM or per user session can reach that far. Because the number is round, it is also a common hand-picked port for a single dedicated VNC server.
Do not expose
Assume remote desktop until proven otherwise. RFB offers no transport encryption in its classic security types, so it belongs behind SSH or a VPN.
$ nmap -Pn -sV -p 5950 TARGETSeen this on your network? Beige Box scans your Wi-Fi and shows every open port on every device — and its Ports tool links straight back here.
Get Beige Box →also available as JSON · Markdown
Corrections or a missing port? Reply @rimrocksystems.