The Username field in the Storage Service settings of A1 WLAN Box ADB VV2220v2 devices allows stored XSS (after a successful Administrator login).

All ADB broadband gateways / routers based on the Epicentro platform are affected by a privilege escalation vulnerability where attackers can gain access to the command line interface (CLI) if previously disabled by the ISP, escalate their privileges, and perform further attacks.

All ADB broadband gateways / routers based on the Epicentro platform are affected by a local root jailbreak vulnerability where attackers are able to gain root access on the device, and extract further information such as sensitive configuration data of the ISP (e.g., VoIP credentials) or attack the internal network of the ISP.

All ADB broadband gateways / routers based on the Epicentro platform are affected by an authorization bypass vulnerability where attackers are able to access and manipulate settings within the web interface that are forbidden to end users (e.g., by the ISP). An attacker would be able to enable the TELNET server or other settings as well.