Port 2481Oracle GIOP

Oracle GIOP uses CORBA’s object-request protocol; on TCP it commonly carries IIOP traffic between clients and object servers.

inNetwork Services

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 5/10
lookups: 0

also known as IIOP, CORBA

Technical Details

what runs on :2481

GIOP defines the wire format for CORBA requests and replies; IIOP is its standard Internet transport mapping. Over TCP, peers exchange messages with a GIOP header followed by request, reply, or other protocol data, and a connection can carry multiple messages. Port 2481 is the Oracle GIOP assignment, not a universal CORBA default; Oracle's related 2482 assignment is commonly used for SSL-protected GIOP. The registry also lists UDP, but ordinary IIOP deployments use TCP.

Security Information

exposure of :2481

risk score

5/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

network services averages 2.7 across 1,307 ports — this one sits 2.3 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

GIOP/IIOP can expose remotely invocable CORBA objects, so an internet-reachable listener may reveal object interfaces or permit operations allowed by the application. GIOP on 2481 is not encrypted by default; restrict it to trusted networks and use the SSL variant or another protected channel where appropriate. Actual impact depends on the ORB and the authorization controls on its objects.

Record

iana registry entry

port: :2481
service: Oracle GIOP
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 5/10caution
category: Network Services
usage: This assignment is for Oracle GIOP, the General Inter-ORB Protocol used by CORBA systems to exchange requests with remote objects. Engineers are most likely to encounter it as IIOP traffic between a CORBA client and an ORB or application server; the registry lists TCP and UDP, though IIOP is typically carried over TCP.
lookups: 0rank 993
added: 2026-09-23
updated: 2026-09-23
references: IANA service name registry — port 2481

Something wrong?

This record is maintained by the engineers who use port 2481. 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 2026-09-23.

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 1,307 in network services →

the 8 most looked-up other ports in network services — 1,307 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 :2481Oracle GIOP

Technical Details

Security Information

Related Ports

Port 2481Oracle GIOP