CVE-2021-47709: Commax Co., Ltd Smart Home Ruvie Cctv Bridge Dvr Service

High severity, CVSS 8.7. EPSS: 0.4% chance of exploitation in the next 30 days.

COMMAX Smart Home System allows an unauthenticated attacker to change configuration and cause denial-of-service through the setconf endpoint. Attackers can trigger a denial-of-service scenario by sending a malformed request to the setconf endpoint.

Affected products

Published 2025-12-09. Last modified 2026-06-17.