CVE-2024-4240: Tenda w9 Firmware

High severity, CVSS 8.8. EPSS: 1.5% chance of exploitation in the next 30 days.

A vulnerability was found in Tenda W9 1.0.0.7(4456). It has been classified as critical. This affects the function formQosManageDouble_user. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The associated identifier of this vulnerability is VDB-262131. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Tenda w9 Firmware: version 1.0.0.7(4456) only

Published 2024-04-26. Last modified 2026-06-17.