CVE-2018-18731: Tenda AC10 Firmware

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

An issue was discovered on Tenda AC7 V15.03.06.44_CN, AC9 V15.03.05.19(6318)_CN, AC10 V15.03.06.23_CN, AC15 V15.03.05.19_CN, and AC18 V15.03.05.19(6318)_CN devices. There is a buffer overflow vulnerability in the router's web server -- httpd. While processing the 'deviceMac' parameter for a post request, the value is directly used in a sprintf to a local variable placed on the stack, which overrides the return address of the function.

Affected products

• Tenda AC10 Firmware: version 15.03.06.23_cn only
• Tenda AC15 Firmware: version 15.03.05.19_cn only
• Tenda AC18 Firmware: version 15.03.05.19(6318)_cn only
• Tenda AC7 Firmware: version 15.03.06.44_cn only
• Tenda AC9 Firmware: version 15.03.05.19(6318)_cn only

Published 2018-10-29. Last modified 2026-06-17.