CVE-2026-6989: Tenda f453 Firmware

High severity, CVSS 8.8. EPSS: 6.3% chance of exploitation in the next 30 days.

A vulnerability has been found in Tenda F453 up to 1.0.0.3. Impacted is the function TendaTelnet of the file /goform/telnet of the component Telnet Service. Such manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Tenda f453 Firmware: version 1.0.0.3 only

Published 2026-04-25. Last modified 2026-06-17.