CVE-2019-9098: Moxa MB3170 Firmware

High severity, CVSS 7.5. EPSS: 2.2% chance of exploitation in the next 30 days.

An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1, MB3660 devices before 2.3, and MB3180 devices before 2.1. An Integer overflow in the built-in web server allows remote attackers to initiate DoS.

Affected products

• Moxa MB3170 Firmware: up to and including 4.0
• Moxa MB3180 Firmware: up to and including 2.0
• Moxa MB3270 Firmware: up to and including 4.0
• Moxa MB3280 Firmware: up to and including 3.0
• Moxa MB3480 Firmware: up to and including 3.0
• Moxa MB3660 Firmware: up to and including 2.2

Published 2020-03-11. Last modified 2026-06-17.