Port 11112DICOM

DICOM medical-imaging application traffic, commonly served on TCP 11112 by imaging systems and test tools.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 6/10
lookups: 0

also known as DICOM networking, DICOM SCP

Technical Details

what runs on :11112

DICOM networking on TCP begins with an association negotiation: the client sends an A-ASSOCIATE request and the server accepts or rejects it, after which they exchange DICOM protocol data units carrying DIMSE operations such as image storage, query, and retrieval. Port 11112 is widely used as a configurable DICOM listener, while 104 is the standard DICOM port; DICOM over TLS is also supported, commonly on port 2762, but encryption is not implied by using 11112. The registry lists UDP as well, though normal DICOM association and DIMSE traffic use TCP rather than UDP.

Security Information

exposure of :11112

risk score

6/ 10risk

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

network services averages 2.6 across 1,886 ports — this one sits 3.4 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 · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

A publicly reachable DICOM listener may permit unauthenticated clients to query or retrieve sensitive medical images and metadata, or submit objects, depending on its configuration and implementation. DICOM traffic is commonly unencrypted unless TLS is explicitly configured, so keep listeners behind trusted networks or VPNs, restrict permitted peers, and patch the implementation; internet exposure is generally inappropriate.

Record

iana registry entry

port: :11112
service: DICOM
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 6/10risk
category: Network Services
usage: TCP 11112 is a commonly configured port for DICOM servers (SCPs), including PACS and imaging-system deployments, as well as DICOM test tools. It is an alternate to the standard DICOM port 104, not a universal default; the IANA assignment also lists UDP, but ordinary DICOM associations use TCP.
lookups: 0rank 993
added: 2026-10-16
updated: 2026-10-16
references: IANA service name registry — port 11112

Something wrong?

This record is maintained by the engineers who use port 11112. 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 2026-10-16.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

all 1,886 in network services →

the 8 most looked-up other ports in network services — 1,886 ports carry that label.

port	service	proto	category	risk	views
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:6543	Jetnet	UDP	Network Services	caution	65.3k
:5938	TeamViewer	TCPUDP	Remote Access	caution	65.0k
:8291	Winbox MikroTik Admin	TCP	Security	caution	62.9k
:3233	WhiskerControl Protocol	TCPUDP	Network Services	caution	61.9k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:3128	Tatsoft Default HTTP Proxy	TCP	Web Services	caution	46.8k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :11112DICOM

Technical Details

Security Information

Related Ports

Port 11112DICOM