Windows 2000 allows local users to cause a denial of service and possibly gain privileges by setting a hardware breakpoint that is handled using global debug registers, which could cause other processes to terminate due to an exception, and allow hijacking of resources such as named pipes.

References

• https://nvd.nist.gov/vuln/detail/CVE-2001-1347
• http://archives.neohapsis.com/archives/bugtraq/2001-05/0232.html
• http://www.iss.net/security_center/static/6590.php
• http://www.securityfocus.com/bid/2764