CVE-2026-5684: Tenda CX12L Firmware

High severity, CVSS 8.0. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability was determined in Tenda CX12L 16.03.53.12. Affected by this issue is the function fromwebExcptypemanFilter of the file /goform/webExcptypemanFilter. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack requires access to the local network. The exploit has been publicly disclosed and may be utilized.

Affected products

• Tenda CX12L Firmware: version 16.03.53.12 only

Published 2026-04-06. Last modified 2026-07-24.