The Aztech DSL600EU router, when WAN access to the web interface is disabled, does not properly block inbound traffic on TCP port 80, which allows remote attackers to connect to the web interface by guessing a TCP sequence number, possibly involving spoofing of an ARP packet, a related issue to CVE-1999-0077.

cgi-bin/script in Aztech ADSL2/2+ 4-port router 3.7.0 build 070426 allows remote attackers to execute arbitrary commands via shell metacharacters in the query string.

Aztech ADSL2/2+ 4-port router has a default "isp" account with a default "isp" password, which allows remote attackers to obtain access if this default is not changed.

Aztech DSL5005EN firmware 1.00.AZ_2013-05-10 and possibly other versions allows unauthenticated attackers to change the administrator password via a crafted POST request to sysAccess.asp. This allows full administrative control of the router without authentication.

Aztech WMB250AC Mesh Routers Firmware Version 016 2020 devices improperly manage sessions, which allows remote attackers to bypass authentication in opportunistic circumstances and execute arbitrary commands with administrator privileges by leveraging an existing web portal login.

Aztech WMB250AC Mesh Routers Firmware Version 016 2020 is vulnerable to PHP Type Juggling in file /var/www/login.php, allows attackers to gain escalated privileges only when specific conditions regarding a given accounts hashed password.

Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices allow remote attackers to obtain sensitive device configuration information via vectors involving the ROM file.

Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices improperly manage sessions, which allows remote attackers to bypass authentication in opportunistic circumstances and execute arbitrary commands with administrator privileges by leveraging an existing web portal login.

cgi-bin/AZ_Retrain.cgi in Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices does not check for authentication, which allows remote attackers to cause a denial of service (WAN connectivity reset) via a direct request.