CVE-2026-4554: Tenda f453 Firmware

High severity, CVSS 8.8. EPSS: 6.5% chance of exploitation in the next 30 days.

A security flaw has been discovered in Tenda F453 1.0.0.3. The affected element is the function FormWriteFacMac of the file /goform/WriteFacMac. The manipulation of the argument mac results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

Affected products

• Tenda f453 Firmware: version 1.0.0.3 only

Published 2026-03-22. Last modified 2026-06-17.