D-Link DIR-859 v1.05 was discovered to contain a stack-based buffer overflow via the function genacgi_main. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted payload.
https://www.dlink.com/en/security-bulletin/
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10267
https://github.com/chunklhit/cve/blob/master/dlink/DIR859/BufferOverflow.md