CVE-2018-18601: Guardzilla GZ621W Firmware

High severity, CVSS 8.1. EPSS: 1.2% chance of exploitation in the next 30 days.

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.

Affected products

• Guardzilla GZ621W Firmware: version 0.5.1.4 only

Published 2018-12-31. Last modified 2026-06-17.