Threat actors have been detected to be targeting Zyxel’s firewall and WLAN controller products that contain an undocumented account with an unchangeable password, which can be found in cleartext in the product’s firmware. Tracked as CVE-2020-29583, a hardcoded credential vulnerability that exists in Zyxel firewalls and AP controllers with an unchangeable static plain-text password and continue reading : Zyxel’s Firewalls and AP Controllers Vulnerability (CVE-2020-29583)
