623
IPMI
Critical RiskUDP — System & Infrastructure
Port Overview
Port Number
623
Service Name
IPMI
Transport Protocol
UDP
Category
System & Infrastructure
Security Risk
Critical
Port Range
Well-Known (0-1023)
What is Port 623?
Intelligent Platform Management Interface (IPMI) over LAN, used by Baseboard Management Controllers (BMCs) in servers for out-of-band management and remote power control. Has a long history of critical vulnerabilities including authentication bypass and cipher-zero attacks.
UDP
System & Infrastructure
Commonly Used
Security Considerations
Port 623 (IPMI) is classified as critical risk. This port should not be exposed to the public internet. The service transmits data without encryption, making it vulnerable to eavesdropping, credential theft, and man-in-the-middle attacks.
Recommendation: Block this port at the firewall. Use encrypted alternatives (SSH, SFTP, HTTPS) instead.