CVE-2017-9138: Tendacn f1200 Firmware

High severity, CVSS 8.0. EPSS: 0.7% chance of exploitation in the next 30 days.

There is a debug-interface vulnerability on some Tenda routers (FH1202/F1202/F1200: versions before 1.2.0.20). After connecting locally to a router in a wired or wireless manner, one can bypass intended access restrictions by sending shell commands directly and reading their results, or by entering shell commands that change this router's username and password.

Affected products

• Tendacn f1200 Firmware: up to and including 1.2.0.19
• Tendacn f1202 Firmware: up to and including 1.2.0.19
• Tendacn FH1202 Firmware: up to and including 1.2.0.19

Published 2017-05-21. Last modified 2026-06-17.