Netscape 7.0 allows remote attackers to cause a denial of service (crash) via a web page with an invalid regular expression argument to the JavaScript reformatDate function.
https://exchange.xforce.ibmcloud.com/vulnerabilities/11444
https://euvd.enisa.europa.eu/vulnerability/EUVD-2003-1409
http://www.securityfocus.com/bid/6959
http://archives.neohapsis.com/archives/bugtraq/2003-02/0338.html