CVE-2026-3677: Tenda FH451 Firmware

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

A vulnerability was found in Tenda FH451 1.0.0.9. This impacts the function fromSetCfm of the file /goform/setcfm. The manipulation of the argument funcname/funcpara1 results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used.

Affected products

• Tenda FH451 Firmware: version 1.0.0.9 only

Published 2026-03-07. Last modified 2026-06-17.