CVE-2025-29386: Tenda AC9 Firmware

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

In Tenda AC9 v1.0 V15.03.05.14_multi, the mac parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerability, which can lead to remote arbitrary code execution.

Affected products

• Tenda AC9 Firmware: version 15.03.05.14 only

Published 2025-03-14. Last modified 2026-06-17.