CVE-2017-16566: Qacctv Jooan a5 IP Camera Firmware

Critical severity, CVSS 9.8. EPSS: 2.6% chance of exploitation in the next 30 days.

On Jooan IP Camera A5 2.3.36 devices, an insecure FTP server does not require authentication, which allows remote attackers to read or replace core system files including those used for authentication (such as passwd and shadow). This can be abused to take full root level control of the device.

Affected products

• Qacctv Jooan a5 IP Camera Firmware: version 2.3.36 only

Published 2017-11-17. Last modified 2026-06-17.