Windows 2000, XP, and Server 2003 does not properly "validate the use of memory regions" for COM structured storage files, which allows attackers to execute arbitrary code, aka the "COM Structured Storage Vulnerability."
Microsoft Windows XP SP2 and earlier, 2000 SP3 and SP4, Server 2003, and older operating systems allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted IP packets with malformed options, aka the "IP Validation Vulnerability."
The Server service (srvsvc.dll) in Windows XP SP1 and SP2 allows remote attackers to obtain sensitive information (users who are accessing resources) via an anonymous logon using a named pipe, which is not properly authenticated, aka the "Named Pipe Vulnerability."
The Hyperlink Object Library for Windows 98, 2000, XP, and Server 2003 allows remote attackers to execute arbitrary code via a crafted link that triggers an "unchecked buffer" in the library, possibly due to a buffer overflow.
Buffer overflow in the Message Queuing component of Microsoft Windows 2000 and Windows XP SP1 allows remote attackers to execute arbitrary code via a crafted message.
Buffer overflow in the font processing component of Microsoft Windows 2000, Windows XP SP1 and SP2, and Windows Server 2003 allows local users to gain privileges via a specially-designed application.
The kernel of Microsoft Windows 2000, Windows XP SP1 and SP2, and Windows Server 2003 allows local users to gain privileges via certain access requests.
The document processing application used by the Windows Shell in Microsoft Windows 2000, Windows XP, and Windows Server 2003 allows remote attackers to execute arbitrary code by modifying the CLSID stored in a file so that it is processed by HTML Application Host (MSHTA), as demonstrated using a Microsoft Word document.
Microsoft Windows XP Pro SP2 and Windows 2000 Server SP4 running Active Directory allow local users to bypass group policies that restrict access to hidden drives by using the browse feature in Office 10 applications such as Word or Excel, or using a flash drive. NOTE: this issue has been disputed in a followup post.