CVE-2006-3687

CVE-2006-3687 describes a stack-based buffer overflow vulnerability in the Universal Plug and Play (UPnP) service of several D-Link routers, including the DI-524, DI-604, DI-624, DI-784, WBR-1310, WBR-2310, and EBR-2310 models. This flaw allows unauthenticated remote attackers to execute arbitrary code by sending a specially crafted, long M-SEARCH request to UDP port 1900. With a CVSS score of 7.5, this vulnerability is considered high severity due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, exploit code is publicly available via ExploitDB, indicating a clear path for exploitation, though there is minimal community discussion or media coverage surrounding this older vulnerability.