CVE-2026-3378: Tenda f453 Firmware

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromqossetting of the file /goform/qossetting. Executing a manipulation of the argument qos can lead to buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.

Affected products

• Tenda f453 Firmware: version 1.0.0.3 only

Published 2026-03-01. Last modified 2026-06-17.