Netscape Enterprise Server in NetWare 5.1 allows remote attackers to cause a denial of service or execute arbitrary commands via a malformed URL.
https://exchange.xforce.ibmcloud.com/vulnerabilities/4780
https://euvd.enisa.europa.eu/vulnerability/EUVD-2000-0596
http://www.securityfocus.com/bid/1393
http://archives.neohapsis.com/archives/bugtraq/2000-06/0264.html