CVE-2020-20746: Tendacn AC9 Firmware

High severity, CVSS 7.2. EPSS: 2.9% chance of exploitation in the next 30 days.

A stack-based buffer overflow in the httpd server on Tenda AC9 V15.03.06.60_EN allows remote attackers to execute arbitrary code or cause a denial of service (DoS) via a crafted POST request to /goform/SetStaticRouteCfg.

Affected products

• Tendacn AC9 Firmware: version 15.03.06.60_en only

Published 2021-09-30. Last modified 2026-06-17.