Port 9400Samsung TWAIN for Network Server

Port 9400 is assigned to Samsung TWAIN for Network Server traffic over TCP and UDP.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 1/10
lookups: 0

also known as sec-t4net-srv

Technical Details

what runs on :9400

no technical write-up for :9400 yet

the handshake, the implementations you meet in the wild, the flags that matter. we have the registry entry — the detail comes from the engineers who run it.

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Security Information

exposure of :9400

risk score

1/ 10safe

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

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

no security notes recorded for :9400 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

Record

iana registry entry

port: :9400
service: Samsung TWAIN for Network Server
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: This assignment identifies Samsung TWAIN for Network Server traffic on TCP and UDP port 9400. IANA registered it to Dongkeun Kim in 2007; public deployment details are not documented in the registry.
lookups: 0rank 994
added: 2026-09-15
updated: 2026-09-15
references: IANA service name registry — port 9400

Something wrong?

This record is maintained by the engineers who use port 9400. 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 2026-09-15.

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

browse categories →

ports registered around :9400, by lookups.

port	service	proto	category	risk	views
:9421	MooseFS Master Server	TCP	Databases	caution	10.2k
:9418	Git Pack Transfer	TCPUDP	File Transfer	caution	10.2k
:9422	MooseFS Chunk Servers	TCP	File Transfer	caution	9.9k
:9420	MooseFS Master-Chunk	TCP	File Transfer	caution	9.0k
:9444	WSO2 ESB Administration Console	TCPUDPtls	Web Services	risk	0
:9343	MpIdcMgr	TCPUDP	—	safe	0
:9396	fjinvmgr	TCPUDP	—	safe	0
:9397	MpIdcAgt	TCPUDP	—	safe	0

risk mix of the 8 listed

safe38%
caution50%
risk13%

1 of 8 encrypted

Port :9400Samsung TWAIN for Network Server

Technical Details

Security Information

Related Ports

Port 9400Samsung TWAIN for Network Server