CVE-2017-11400: Belden Tofino Xenon Security Appliance Firmware

Medium severity, CVSS 6.8. EPSS: 0.3% chance of exploitation in the next 30 days.

An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. An incomplete firmware signature allows a local attacker to upgrade the equipment (kernel, file system) with unsigned, attacker-controlled, data. This occurs because the appliance_config file is signed but the .tar.sec file is unsigned.

Affected products

• Belden Tofino Xenon Security Appliance Firmware: up to and including 3.1.0

Published 2017-11-20. Last modified 2026-06-17.