Port 7173IBM zSecure Server

TCP endpoint for zSecure clients communicating with security services on an IBM z/OS system.

transport: tcp
in transit: cleartext
assignment: official
risk: 7/10
lookups: 0

Technical Details

what runs on :7173

The service uses TCP and is associated with the zSecure Server on z/OS. It provides a product-specific client/server connection for zSecure rather than a standard HTTP or other widely interoperable protocol; the port number alone does not identify a particular zSecure function. Do not assume the connection is encrypted by default: deployments should verify their TLS or AT-TLS configuration.

Security Information

exposure of :7173

risk score

7/ 10risk

treat as sensitive. widely scanned and regularly exploited when reachable — restrict it to known sources.

security averages 3.0 across 412 ports — this one sits 4.0 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp

every listening transport is another surface to filter at the edge

security overview

A reachable zSecure Server may expose access to sensitive mainframe security information or administrative functions. Keep it off the public internet, limit connections to trusted client networks, and verify that host authentication and TLS protections are configured; the port's obscurity is not a security control.

Record

iana registry entry

port: :7173
service: IBM zSecure Server
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 7/10risk
category: Security Remote Access
usage: This port is assigned to the zSecure Server, part of IBM's zSecure mainframe security products. It is encountered on z/OS systems where zSecure clients connect to security services; it is not a general-purpose web or file-transfer service.
lookups: 0rank 993
added: 2026-10-12
updated: 2026-10-12
references: IANA service name registry — port 7173

Something wrong?

This record is maintained by the engineers who use port 7173. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-10-12.

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edit this record →back to the registry

Related Ports

all 412 in security →

the 8 most looked-up other ports in security — 412 ports carry that label.

port	service	proto	category	risk	views
:8881	Atlasz Secure Server	TCP	Web Services	caution	67.6k
:443	HTTPS	TCPtls	Web Services	caution	65.9k
:8291	Winbox MikroTik Admin	TCP	Security	caution	62.9k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:3128	Squid Proxy HTTP	TCP	Web Services	caution	45.8k
:8080	HTTP Alternate	TCP	Web Services	caution	44.9k
:7000	Vuze HTTPS Tracker	TCPtls	Security	caution	28.9k

risk mix of the 8 listed

caution100%

2 of 8 encrypted

Port :7173IBM zSecure Server

Technical Details

Security Information

Related Ports

Port 7173IBM zSecure Server