DoS vulnerability in Vilar VS-IPC1002 IP cameras

Vilar VS-IPC1002 IP cameras are vulnerable to DoS (Denial-of-Service) attacks. An unauthenticated attacker on the same local network might send a crafted request to /cgi-bin/action endpoint and render the device completely unresponsive. A manual restart of the device is required. 
The vendor did not respond in any way. Only version 1.1.0.18 was tested, other versions might be vulnerable as well.