Edimax BR-6675nD POST Request formPPTPSetup buffer overflow

A flaw has been found in Edimax BR-6675nD 1.12. Affected by this issue is the function formPPTPSetup of the file /goform/formPPTPSetup of the component POST Request Handler. Executing a manipulation of the argument pptpUserName can lead to buffer overflow. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.