CVE-2018-14557: Tenda AC10 Firmware

High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days.

An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with firmware through V15.03.06.23_CN(AC10). A buffer overflow vulnerability exists in the router's web server (httpd). When processing the page parameters for a post request, the value is directly written with sprintf to a local variable placed on the stack, which overrides the return address of the function, a causing buffer overflow.

Affected products

• Tenda AC10 Firmware: up to and including 15.03.06.23_cn
• Tenda AC7 Firmware: up to and including 15.03.06.44_cn
• Tenda AC9 Firmware: up to and including 15.03.05.19\(6318\)_cn

Published 2019-04-25. Last modified 2026-06-17.