This update addresses the "Predictable Name Pipes Could Enable Privilege Elevation via Telnet" security vulnerability in the Windows 2000 Telnet service that is discussed in Microsoft Security Bulletin MS01-031. Download now to help prevent a malicious user from launching programs on your computer, gaining access to your network or initiating a denial of service attack against your computer.

This update addresses these issues:

• Two vulnerabilities that could enable an attacker to gain privileges on a Telnet server.
• Four vulnerabilities that could be used to disrupt Telnet services.
• One vulnerability that could make it easier for an attacker to gain access to a poorly configured network via the Telnet service.

For more information about this vulnerability, read Microsoft Security Bulletin MS01-031. (This site is in English.)

1. Click Start, point to Settings, and then click Control Panel.
2. Double-click Add/Remove Programs.
3. Select Windows 2000 Hotfix (Pre-SP3) [See Q299553 for more information], and then click Change/Remove to uninstall.