CVE-2026-3679: Tenda f451 Firmware

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

A vulnerability was identified in Tenda FH451 1.0.0.9. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex. Such manipulation of the argument mit_linktype/PPPOEPassword leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used.

Affected products

• Tenda f451 Firmware: version 1.0.0.9 only

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