CVE-2026-3970: Tenda i3 Firmware

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

A flaw has been found in Tenda i3 1.0.0.6(2204). Affected is the function formwrlSSIDget of the file /goform/wifiSSIDget. Executing a manipulation of the argument index can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published and may be used.

Affected products

• Tenda i3 Firmware: version 1.0.0.6(2204) only

Published 2026-03-12. Last modified 2026-06-17.