TCP Port 2083 – radsec

About TCP Port 2083

The Internet Assigned Numbers Authority (IANA) registers port 2083 for radsec. The IANA description reads: ‘Secure Radius Service’. This port appears in 1 IDS rule and does not have notable malware activity indicators in our data.

IDS Rule References

1 IDS / security rule reference TCP port 2083. Treat that number as context, not a danger score. Many detection rules are written against groups of ports rather than one service, web ports especially, so common web alternate ports inherit large counts while genuinely sensitive services can show few rules or none. Presence in IDS rules does not mean traffic on this port is malicious.

Rule categories (top 1): web-application-attack (1).

Sample rule descriptions for TCP port 2083:

• ET WEB_SPECIFIC_APPS CentOS Web Panel Unauthenticated Remote Command Execution (CVE-2025-48703)

Data Sources

This information is compiled from: IANA Service Name and Transport Protocol Port Number Registry and Emerging Threats Open Ruleset (BSD 2-Clause / GPLv2 per SID range).