Port 5993DMTF CIM-RS (WBEM REST)

CIM-RS provides a REST-style HTTP interface for managing CIM resources in WBEM systems.

transport: tcp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

also known as WBEM CIM REST

Technical Details

what runs on :5993

TCP port 5993 is assigned to DMTF WBEM CIM REST, commonly called CIM-RS. The protocol uses HTTP request/response semantics to access CIM resources through REST-style URIs; it is distinct from the older CIM-XML WBEM interface. The port assignment alone does not establish TLS: unless the implementation provides HTTPS or is otherwise protected, HTTP traffic may be unencrypted.

Security Information

exposure of :5993

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

web services averages 3.1 across 203 ports — this one sits 1.1 below.

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

CIM-RS exposes system-management operations, so an accessible endpoint could reveal management data or permit changes depending on its authorization controls. Keep it on trusted management networks, require strong authentication and TLS where supported, and do not expose it directly to the internet; the port is rarely observed open in scans.

Record

iana registry entry

port: :5993
service: DMTF CIM-RS (WBEM REST)
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Web Services Network Services
usage: A listener would be a WBEM management endpoint implementing DMTF's REST-style interface to Common Information Model resources, typically on a managed system or management platform. The port is registered to WS Inc; it is uncommon in internet-wide scans.
lookups: 0rank 993
added: 2026-10-09
updated: 2026-10-09
references: IANA service name registry — port 5993

Something wrong?

This record is maintained by the engineers who use port 5993. 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 2026-10-09.

01edit any field on a page of its own
02a model checks it for accuracy and spam
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edit this record →back to the registry

Related Ports

all 203 in web services →

the 8 most looked-up other ports in web services — 203 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:8000	Intel Remote Desktop / Alternate HTTP Port	TCP	Web Services	safe	84.3k
:8888	NewsEDGE	TCPUDP	Web Services	caution	83.3k
:8888	HTTP Alternative Port	TCP	Web Services	caution	76.5k
:8888	GNUmp3d Streaming HTTP	TCP	Web Services	caution	76.3k
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:8881	Atlasz Secure Server	TCP	Web Services	caution	67.6k
:80	HTTP	TCPUDP	Web Services	caution	67.3k

risk mix of the 8 listed

safe13%
caution88%

0 of 8 encrypted

Port :5993DMTF CIM-RS (WBEM REST)

Technical Details

Security Information

Related Ports

Port 5993DMTF CIM-RS (WBEM REST)