CVE-2025-13445: Tenda AC21 Firmware

Critical severity, CVSS 9.8. EPSS: 3.9% chance of exploitation in the next 30 days.

A flaw has been found in Tenda AC21 16.03.08.16. This affects an unknown part of the file /goform/SetIpMacBind. Executing a manipulation of the argument list can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.

Affected products

• Tenda AC21 Firmware: version 16.03.08.16 only

Published 2025-11-20. Last modified 2026-06-17.