CVE-2026-9459: Edimax Ew-7438rpn

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A security flaw has been discovered in Edimax EW-7438RPn 1.31. This affects the function formConnectionSetting of the file /goform/formConnectionSetting. Performing a manipulation of the argument max_Conn/timeOut results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Edimax Ew-7438rpn: version 1.31 only

Published 2026-05-25. Last modified 2026-07-23.