CVE-2025-52221: Tenda AC6 Firmware

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Tenda AC6 15.03.05.16_multi is vulnerable to Buffer Overflow in the formSetCfm function via the funcname, funcpara1, and funcpara2 parameters.

Affected products

• Tenda AC6 Firmware: version 15.03.05.16_multi only

Published 2026-04-08. Last modified 2026-07-25.