CVE-2026-12806: Edimax BR-6478AC V2 POST Request formWlSiteSurvey buffer overflow
A vulnerability has been found in Edimax BR-6478AC V2 1.23. The impacted element is the function formWlSiteSurvey of the file /goform/formWlSiteSurvey of the component POST Request Handler. The manipulation of the argument selSSID leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-12806?
CVE-2026-12806 has a high severity rating of 8.8.
What type of vulnerability is CVE-2026-12806?
CVE-2026-12806 is classified as a buffer overflow vulnerability.
How do I fix CVE-2026-12806?
To fix CVE-2026-12806, you should update the Edimax BR-6478AC V2 firmware to the latest version provided by the manufacturer.
What component is affected by CVE-2026-12806?
CVE-2026-12806 affects the POST Request Handler component in the Edimax BR-6478AC V2 router.
Can CVE-2026-12806 be exploited remotely?
Yes, CVE-2026-12806 can be exploited remotely due to its nature of being triggered by a POST request.