A reliance on a static, hard-coded credential in the design of the cloud-based storage system of Practecol's Guardzilla All-In-One Video Security System allows an attacker to view the private data of all users of the Guardzilla device.
The TK_set_deviceModel_req_handle function in the cloud communication component in Guardzilla GZ621W devices with firmware 0.5.1.4 has a Buffer Overflow.