This vulnerability involves a buffer overflow triggered by manipulating the selSSID argument in the formWlSiteSurvey function within the POST Request Handler of Edimax BR-6675nD firmware version 1.12. The flaw allows remote attackers to potentially execute arbitrary code or cause denial of service due to improper input validation. The vulnerability is rated with a CVSS 4.0 score of 8.7, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. The vendor has not issued any patch or advisory, and the exploit code has been publicly disclosed.

Successful exploitation of this buffer overflow vulnerability could allow remote attackers to execute arbitrary code or disrupt the device's normal operation, impacting confidentiality, integrity, and availability of the affected router. Given the high CVSS score and remote attack vector, this poses a significant risk to network security where the device is deployed.

No official patch or remediation is currently available from the vendor, and the vendor has not responded to the disclosure. Users should consider mitigating exposure by restricting network access to the affected device, disabling remote management features if possible, or replacing the device with a secure alternative. Monitor vendor channels for any future updates or patches. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.