Unregistered high port with no named service in any public database.
There is no IANA assignment for 54328 — RFC 6335 reserves 49152-65535 for dynamic and private use. Nmap includes it in the default top-1000 TCP set with an observed-open frequency of 0.000228, and labels it "unknown". SANS ISC records scanning traffic aimed at it but has no service name and no associated CVEs. Short version: registered to nobody, rarely seen, and when seen, unidentified.
Expose with care
An unnamed listener is an unaudited listener. Find the process, then decide.
$ nc -vz -w 3 TARGET 54328Seen 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.
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Corrections or a missing port? Reply @rimrocksystems.