CVE-2026-19961: Edimax Ew-7478apc

Critical severity, CVSS 9.9. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability was detected in Edimax EW-7478APC 1.04. Affected is the function formWlSiteSurvey of the file /goform/formWlSiteSurvey. Performing a manipulation of the argument selSSID results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Edimax Ew-7478apc: version 1.04 only

Published 2026-08-16. Last modified 2026-08-20.