A vulnerability in the Mitel 6800 Series, 6900 Series, and 6900w Series SIP Phones, including the 6970 Conference Unit through 6.4 SP4, could allow an unauthenticated attacker to conduct a command injection attack due to insufficient parameter sanitization. A successful exploit could allow an attacker to execute arbitrary commands within the context of the phone, leading to disclosure or modification of sensitive configuration data or affecting device availability and operation.