This talk is about how an unauthenticated heap-based buffer overflow vulnerability was discovered and exploited within a router distributed by a market-leading ISP. Despite the targeted process utilizing mitigations such as DEP and ASLR, it still fell prey to known exploitation techniques. This talk will go over the thought process, failures, and road-blocks that were encountered and how they were overcame. The audience should walk away with a clear understanding of how to find ideal exploit primitives within their targeted device for heap-based vulnerabilities.