CVE-2026-5567: Tenda m3 Firmware

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

A flaw has been found in Tenda M3 1.0.0.10. This vulnerability affects the function setAdvPolicyData of the file /goform/setAdvPolicyData of the component Destination Handler. Executing a manipulation of the argument policyType can lead to buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.

Affected products

• Tenda m3 Firmware: version 1.0.0.10 only

Published 2026-04-05. Last modified 2026-07-24.