CVE-2026-9389: Tenda f456

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A security vulnerability has been detected in Tenda F456 1.0.0.5. This affects the function frmL7ImForm of the file /goform/L7Im. The manipulation of the argument page leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used.

Affected products

• Tenda f456: version 1.0.0.5 only

Published 2026-05-24. Last modified 2026-07-23.