CVE-2021-47707: Commax Co., Ltd Commax Cvd-Axx Dvr

Critical severity, CVSS 9.3. EPSS: 0.4% chance of exploitation in the next 30 days.

COMMAX CVD-Axx DVR 5.1.4 contains weak default administrative credentials that allow remote password attacks and disclose RTSP stream. Attackers can exploit this by sending a POST request with the 'passkey' parameter set to '1234', allowing them to access the web control panel.

Affected products

• Commax Co., Ltd Commax Cvd-Axx Dvr

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