Port 3527Veritas Backup Exec Server

Veritas Backup Exec Server communications and message-queue traffic on TCP and UDP port 3527.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 7/10
lookups: 0

also known as beserver-msg-q

1 other service is registered on port 3527. compare all 2 →

Technical Details

what runs on :3527

Backup Exec uses proprietary communications over both TCP and UDP port 3527. The Backup Exec Server service uses the port for coordination and control traffic between backup-server components; UDP use is associated with service discovery or related server communications, while TCP carries established service exchanges. The protocol is not a general-purpose text protocol and does not provide an HTTP-style banner. Exact behavior varies by Backup Exec version and enabled components; TCP 10000 (Remote Agent) and port 6101 (Agent Browser) are commonly relevant when tracing a complete Backup Exec deployment.

Security Information

exposure of :3527

risk score

7/ 10risk

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

system averages 2.7 across 922 ports — this one sits 4.3 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

This port should normally be restricted to trusted backup servers, protected hosts, and management networks, not exposed to the public internet. An exposed Backup Exec service increases the attack surface of backup infrastructure and may allow authenticated administrative operations or provide a path to sensitive backup data; historical product vulnerabilities also make version and patch management important. Use firewall allowlists and the product's supported authentication and encryption settings rather than relying on the port being obscure.

Record

iana registry entry

port: :3527
service: Veritas Backup Exec Server
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 7/10risk
category: System
usage: Port 3527 is used by Veritas (formerly VERITAS) Backup Exec installations for communications between Backup Exec server components. It is typically found on an internal backup or media server, alongside related ports such as TCP 10000 for the Remote Agent and port 6101 for Agent Browser functions.
lookups: 0rank 993
added: 2026-08-22
updated: 2026-09-22
references: IANA service name registry — port 3527

Something wrong?

This record is maintained by the engineers who use port 3527. 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 2026-09-22.

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 922 in system →

the 8 most looked-up other ports in system — 922 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:4664	Google Desktop Search	TCP	System	caution	67.2k
:8008	IBM HTTP Server Admin	TCP	Web Services	caution	58.3k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:9080	WebSphere HTTP Transport (default)	TCP	Web Services	caution	51.6k
:23	Telnet	TCP	Remote Access	caution	34.8k
:12489	NSClient Monitoring Agent	TCP	Network Services	caution	30.0k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :3527Veritas Backup Exec Server

Technical Details

Security Information

Related Ports

Port 3527Veritas Backup Exec Server