CVE-2019-5140: Moxa Awk-3131a Firmware

High severity, CVSS 8.8. EPSS: 2.8% chance of exploitation in the next 30 days.

An exploitable command injection vulnerability exists in the iwwebs functionality of the Moxa AWK-3131A firmware version 1.13. A specially crafted diagnostic script file name can cause user input to be reflected in a subsequent iwsystem call, resulting in remote control over the device. An attacker can send commands while authenticated as a low privilege user to trigger this vulnerability.

Affected products

• Moxa Awk-3131a Firmware: version 1.13 only

Published 2020-02-25. Last modified 2026-06-17.