CVE-2025-11385: Tenda AC20 Firmware

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The affected element is the function sscanf of the file /goform/fast_setting_wifi_set. The manipulation of the argument timeZone leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Tenda AC20 Firmware: version 16.03.08.12 only

Published 2025-10-07. Last modified 2026-10-08.