Port 13783Symantec VOPIED Protocol

Symantec's VOPIED protocol, previously known as VERITAS, is primarily used within enterprise environments for data backup, replication, and storage management solutions. It facilitates communication between backup agents and storage servers, enabling efficient data transfer and synchronization. The protocol operates over both TCP and UDP, supporting flexible, reliable operations crucial for maintaining enterprise data integrity and availability..

transport
tcp · udp

2 transports registered

in transit
cleartext

payload readable on path

assignment
official

registered with iana

risk
4/10

caution

lookups
7,737

rank 660 of 993 · top 66%

Technical Details

what runs on :13783

Symantec's VOPIED protocol is a proprietary communication protocol used predominantly within its data protection and backup software suites, inheriting functionalities from the former VERITAS technologies. Designed for enterprise-scale data management, it allows coordination between various client machines, backup agents, media servers, and storage devices. The protocol supports the orchestration of backup scheduling, execution, cataloging, and data transfer across diverse networked environments.

Operating over ports 13783/TCP and 13783/UDP, VOPIED employs a combination of control messages and data streams to manage backup workflows efficiently. TCP is generally utilized for reliable, connection-oriented commands and metadata exchange, while UDP may be leveraged for lightweight status messages or initial discovery phases, optimizing overall performance and responsiveness.

The protocol is tailored to support large-scale data replication, incremental backups, and disaster recovery processes. It integrates with storage solutions such as SANs and NAS, automating complex tasks like snapshot management, deduplication, and encryption (if configured). Despite no native encryption indicated here, enterprises often deploy VOPIED within secured, segmented internal networks to mitigate exposure risks.

Security Information

exposure of :13783

risk score

4/ 10caution

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

file transfer averages 4.1 across 114 ports — this one sits 0.1 below.

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

Common Vulnerabilities:

  • Susceptibility to unauthorized access if network segmentation and authentication are weak, potentially exposing sensitive backup data.
  • Lack of native encryption on this port could lead to interception or tampering of backup streams during transit.
  • Potential for exploitation through malformed packets or protocol fuzzing due to proprietary nature and limited public scrutiny.

Common Mitigations:

  • Deploy strong authentication controls, leveraging enterprise credentials or certificates within the backup environment.
  • Use VPNs, dedicated backup VLANs, or IPsec to encrypt traffic traversing untrusted or shared networks.
  • Restrict port access via firewalls and network ACLs, only permitting trusted endpoints.
  • Regularly apply updates from Symantec to patch any emerging vulnerabilities.
  • Monitor protocol traffic for anomalies, using intrusion detection/prevention systems tuned for backup data flows.

the 8 most looked-up other ports in file transfer — 114 ports carry that label.

risk mix of the 8 listed

  • caution100%

1 of 8 encrypted