Buffer overflow in SmartHTML Interpreter (shtml.dll) in Microsoft FrontPage Server Extensions (FPSE) 2000 and 2002 allows remote attackers to cause a denial of service (CPU consumption) or run arbitrary code, respectively, via a certain type of web file request.
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-053
http://www.securityfocus.com/bid/5804
http://www.kb.cert.org/vuls/id/723537