An authentication bypass vulnerability was reported in Lenovo ThinkPad Stack Wireless Router firmware version 1.1.3.4 that could allow escalation of privilege.

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.