TR-069 (CWMP)
Critical RiskTCP — System & Infrastructure
Port Overview
What is Port 7547?
Port 7547 is used by TR-069 (CPE WAN Management Protocol), a standard for ISPs to remotely manage and provision customer-premises equipment like routers and modems. ISP-managed devices listen on this port for configuration commands from the ISP's Auto-Configuration Server (ACS). The Mirai botnet variant Imeij exploited vulnerable TR-069 implementations to compromise millions of routers.
Security Considerations
Port 7547 (TR-069 (CWMP)) 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.