CVE-2023-34216: Moxa Tn-4900 Firmware

High severity, CVSS 8.1. EPSS: 0.7% chance of exploitation in the next 30 days.

TN-4900 Series firmware versions v1.2.4 and prior and TN-5900 Series firmware versions v3.3 and prior are vulnerable to the command-injection vulnerability. This vulnerability derives from insufficient input validation in the key-delete function, which could potentially allow malicious users to delete arbitrary files.

Affected products

• Moxa Tn-4900 Firmware: up to and including 1.2.4
• Moxa Tn-5900 Firmware: up to and including 3.3

Published 2023-08-17. Last modified 2026-06-17.