In Green Packet DX-350 Firmware version v2.8.9.5-g1.4.8-atheeb, the "PING" (aka tag_ipPing) feature within the web interface allows performing command injection, via the "pip" parameter.

WiMAX routers based on the MediaTek SDK (libmtk) that use a custom httpd plugin are vulnerable to an authentication bypass allowing a remote, unauthenticated attacker to gain administrator access to the device by performing an administrator password change on the device via a crafted POST request.

Cross-Site Request Forgery (CSRF) exists in Green Packet DX-350 Firmware version v2.8.9.5-g1.4.8-atheeb, as demonstrated by a request to ajax.cgi that enables UPnP.

Cross-Site Scripting (XSS) exists in Green Packet DX-350 Firmware version v2.8.9.5-g1.4.8-atheeb, as demonstrated by the action parameter to ajax.cgi.

Green Packet DX-350 Firmware version v2.8.9.5-g1.4.8-atheeb has a default password of admin for the admin account.

GreenPacket OH736's WR-1200 Indoor Unit, OT-235 with firmware versions M-IDU-1.6.0.3_V1.1 and MH-46360-2.0.3-R5-GP respectively are vulnerable to remote command injection. Commands are executed using pre-login execution and executed with root privileges allowing complete takeover.

Green Packet WiMax DV-360 2.10.14-g1.0.6.1 devices allow Command Injection, with unauthenticated remote command execution, via a crafted payload to the HTTPS port, because lighttpd listens on all network interfaces (including the external Internet) by default. NOTE: this may overlap CVE-2017-9980.

Green Packet DX-350 uses default credentials

Green Packet DX-350 uses non-random default credentials of: root:wimax. A remote network attacker can gain privileged access to a vulnerable device.