04WebServer 1.42 allows remote attackers to cause a denial of service (fail to restart properly) via an HTTP request for an MS-DOS device name such as COM2.
https://exchange.xforce.ibmcloud.com/vulnerabilities/18036
http://www.soft3304.net/04WebServer/Security.html
http://www.securityfocus.com/bid/11652
http://www.security.org.sg/vuln/04webserver142.html
http://secunia.com/advisories/13159/