A vulnerability in the Mitel 6800 Series, 6900 Series, and 6900w Series SIP Phones, including the 6970 Conference Unit, through R6.4.0.HF1 (R6.4.0.136) could allow an authenticated attacker with administrative privilege to conduct an argument injection attack, due to insufficient parameter sanitization during the boot process. A successful exploit could allow an attacker to execute arbitrary commands within the context of the system.

The Web UI component of Mitel MiVoice 6800 and 6900 series SIP Phones with firmware before 5.1.0.SP5 could allow an unauthenticated attacker to expose sensitive information due to improper memory handling during failed login attempts.