CVE-2026-5687: Tenda CX12L Firmware

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

A weakness has been identified in Tenda CX12L 16.03.53.12. This issue affects the function fromNatStaticSetting of the file /goform/NatStaticSetting. This manipulation of the argument page causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

Affected products

• Tenda CX12L Firmware: version 16.03.53.12 only

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