A major vulnerability in Windows NT, NT Terminal Server, Windows 2000, Windows XP and Windows Server 2003 that can allow an intruder to run an unauthorized program with superuser privileges. The attacker can gain full control of a system and then launch similar attacks on other Windows systems. Information about this vulnerability is available.

If you have one of the systems listed above, you should IMMEDIATELY download and install the latest service pack for your system. Look for the most recent service pack for your system under the Security/Service Packs heading. The service for your system will fix not only this vulnerability, but a large number of others. If you have questions or need assistance, send email to help@lbl.gov or Gene Schultz at eeshcultz@lbl.gov.