Port 1861LeCroy VICP

LeCroy's Virtual Instrument Control Protocol for remotely controlling oscilloscopes and transferring measurement data.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 4/10
lookups: 0

also known as Virtual Instrument Control Protocol

Technical Details

what runs on :1861

VICP (Virtual Instrument Control Protocol) is a proprietary LeCroy instrument-control protocol assigned to TCP and UDP port 1861. Normal deployments primarily use a TCP session carrying instrument commands and returned data, including waveform transfers; UDP use is implementation- or discovery-dependent. Commands commonly correspond to LeCroy's remote-control command set and are often accessed through VISA or vendor automation software. Traffic is generally cleartext and does not provide modern transport security by default.

Security Information

exposure of :1861

risk score

4/ 10caution

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

network services averages 3.6 across 711 ports — this one sits 0.4 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 reachable VICP endpoint may allow an attacker to query instrument state, retrieve captured measurements, alter settings, or disrupt an experiment. VICP should normally be restricted to a laboratory management network or VPN rather than exposed to the public internet; cleartext traffic and limited built-in access control make network isolation important.

Record

iana registry entry

port: :1861
service: LeCroy VICP
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 4/10caution
category: Network Services System
usage: LeCroy oscilloscopes and other test instruments use VICP for remote control, status queries, and waveform or measurement transfer. Engineers typically encounter it in laboratory automation through instrument-control software or VISA connections to a device on the local network.
lookups: 0rank 994
added: 2026-08-24
updated: 2026-08-24
references: IANA service name registry — port 1861

Something wrong?

This record is maintained by the engineers who use port 1861. 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 2026-08-24.

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 711 in network services →

the 8 most looked-up other ports in network services — 711 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 :1861LeCroy VICP

Technical Details

Security Information

Related Ports

Port 1861LeCroy VICP