CVE-2021-38432: Fatek Communication Server Firmware

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

FATEK Automation Communication Server Versions 1.13 and prior lacks proper validation of user-supplied data, which could result in a stack-based buffer overflow condition and allow an attacker to remotely execute code.

Affected products

• Fatek Communication Server Firmware: up to and including 1.13

Published 2021-10-15. Last modified 2026-06-17.