Edimax BR-6478AC Buffer Overflow Vulnerability in L2TP Setup POST Request Handler

A buffer overflow vulnerability has been identified in the Edimax BR-6478AC router, specifically in version 1.23. The issue arises in the POST request handler within the function formL2TPSetup, where improper handling of the L2TPUserName argument creates the potential for buffer overflow. This vulnerability can be exploited remotely.

Impact

Exploitation of this vulnerability leads to a buffer overflow, which can commonly result in arbitrary code execution or causing the device to crash.