CVE-2025-29121: Tenda AC6 Firmware

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

A vulnerability was found in Tenda AC6 V15.03.05.16. The vulnerability affects the functionality of the /goform/fast_setting_wifi_set file form_fast_setting_wifi_set. Using the timeZone parameter causes a stack-based buffer overflow.

Affected products

• Tenda AC6 Firmware: version 15.03.05.16 only

Published 2025-03-20. Last modified 2026-06-17.