CVE-2024-31966: Mitel 6800 Series Firmware

Medium severity, CVSS 6.2. EPSS: 0.4% chance of exploitation in the next 30 days.

A vulnerability on Mitel 6800 Series and 6900 Series SIP Phones through 6.3 SP3 HF4, 6900w Series SIP Phone through 6.3.3, and 6970 Conference Unit through 5.1.1 SP8 allows an authenticated attacker with administrative privilege to conduct an argument injection attack due to insufficient parameter sanitization. A successful exploit could allow an attacker to access sensitive information, modify system configuration or execute arbitrary commands.

Affected products

• Mitel 6800 Series Firmware: up to and including 6.3 SP3 HF4
• Mitel 6900 Series Firmware: up to and including 6.3 SP3 HF4
• Mitel 6900w Series Firmware: up to and including 6.3.3
• Mitel 6970 Firmware: up to and including 5.1.1 SP8

Published 2024-05-02. Last modified 2026-06-17.