CVE-2026-4534: Tenda FH451 Firmware

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

A flaw has been found in Tenda FH451 1.0.0.9. This affects the function formWrlExtraSet of the file /goform/WrlExtraSet. This manipulation of the argument GO causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used.

Affected products

• Tenda FH451 Firmware: version 1.0.0.9 only

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