Port 8400Commvault CVP
**Commvault CVP** uses port 8400 to enable unified management of data backup, recovery, archiving, and compliance across cloud and on-premises environments. It facilitates secure and efficient data handling operations as part of the **Commvault platform**, supporting a wide range of enterprise data management tasks. Both TCP and UDP protocols are supported to ensure flexible connectivity for client-server communications, agent interactions, and administrative control..
- transport
- tcp · udp
- in transit
- cleartext
- assignment
- official
- risk
- 4/10
- lookups
- 6,923
2 transports registered
payload readable on path
registered with iana
caution
rank 739 of 993 · top 74%
Technical Details
what runs on :8400Port 8400 is designated for Commvault CVP (Commvault Unified Data Management) component’s communication within the Commvault architecture. This port acts as a critical hub for coordinating data movement, client management, and administrative commands, facilitating seamless interaction between media agents, clients, and the CommServe server. Communication over port 8400 is essential for managing backup and recovery jobs, scheduling, reporting, and licensing tasks.
Technically, Commvault's distributed architecture leverages this port primarily for its internal protocol workflows as well as for API requests to orchestrate data protection policies. The server accepts connections from various agents deployed across environments, enabling real-time control and monitoring of backup jobs, restores, and data migration activities. Port 8400 supports both TCP and UDP, with TCP typically used for reliable transmission of commands and data streams, while UDP may be utilized for lightweight status monitoring and discovery operations.
Furthermore, port 8400 integrates with the broader enterprise networking stack, operating within secure network zones or across hybrid cloud deployments. Administrators usually configure firewall exceptions to allow traffic on this port between trusted components. The port may also interface with storage backends, tape libraries, and cloud APIs under the management workflows ensured by Commvault.
Security Information
exposure of :8400risk 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
- Unencrypted Communications: If not supplemented by external encryption like TLS VPN tunnels or secure segmentation, data over this port may be intercepted by malicious actors via packet sniffing.
- Unauthorized Access: Improper authentication and lack of access control can allow attackers to initiate unauthorized backup or restore operations, leading to data breach or manipulation.
- Service Exploitation: Vulnerabilities in Commvault services receiving data on port 8400 can be exploited for remote code execution or denial of service, especially if the deployment is outdated.
Common Mitigations
- Network Segmentation: Restrict exposure of port 8400 to internal trusted networks only and isolate management networks from user or public segments.
- Access Controls: Apply strict firewall rules permitting only known authorized IP addresses and enforce strong authentication methods for administrative access.
- Encryption: Employ VPNs, SSL/TLS wrapping, or encrypted tunnels to protect sensitive data transmissions across untrusted paths.
- Patching: Regularly update Commvault software components to address any published security vulnerabilities.
- Monitoring: Implement network intrusion detection systems (IDS) and audit logs to track unusual activities involving this port, triggering alerts on suspicious usage patterns.
Related Ports
the 8 most looked-up other ports in file transfer — 114 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :9080 | Groove RPC | TCPUDP | Web Services | caution | 70.8k |
| :17500 | Dropbox LAN Sync | TCPUDP | File Transfer | caution | 43.7k |
| :548 | Apple Filing Protocol | TCP | File Transfer | caution | 36.8k |
| :7000 | Vuze HTTPS Tracker | TCPtls | Security | caution | 28.9k |
| :1337 | PowerFolder P2P | TCP | Security | caution | 27.1k |
| :9001 | SharePoint Authoring | Web Services | caution | 26.3k | |
| :8080 | FilePhile Relay | UDP | File Transfer | caution | 25.6k |
| :1337 | WASTE Encrypted Sharing | TCP | Security | caution | 22.9k |
risk mix of the 8 listed
- caution100%
1 of 8 encrypted