NetDSL ADSL Modem 800 with Microsoft Network firmware 5.5.11 allows remote attackers to gain access to configuration menus by sniffing undocumented usernames and passwords from network traffic.
The default configuration of Arescom NetDSL 800 does not require authentication, which allows remote attackers to cause a denial of service or reconfigure the router.
The telnet port in Arescom NetDSL 1000 router allows remote attackers to cause a denial of service via a series of connections with long strings, which causes a large number of login failures and causes the telnet service to stop.