CVE-2026-104809: Mitel MiVoice Office 400

High severity, CVSS 8.4. EPSS: 0.1% chance of exploitation in the next 30 days.

DigitalCanion has discovered a vulnerability that allows an attacker to cause the system to load an attacker-controlled .so file instead of the expected legitimate module. The loading mechanism relies on a predictable module name without adequately verifying the file’s origin or integrity. A malicious shared object using the expected name can therefore be loaded by a privileged process. The module code then executes within the context and privileges of that process. This results in arbitrary code execution and full compromise of the Mitel Linux virtual machine.

Affected products

• Mitel Mitel MiVoice Office 400: version 11.0.96.0 only

Published 2026-10-05. Last modified 2026-10-06.