NT Virtual DOS Machine (NTVDM.EXE) in Windows 2000, NT and XP does not verify user execution permissions for 16-bit executable files, which allows local users to bypass the loader and execute arbitrary programs.

Microsoft Windows XP with Fast User Switching (FUS) enabled does not remove the "show processes from all users" privilege when the user is removed from the administrator group, which allows that user to view processes of other users.

Windows File Protection (WFP) in Windows 2000 and XP does not remove old security catalog .CAT files, which could allow local users to replace new files with vulnerable old files that have valid hash codes.

Microsoft Windows XP allows local users to prevent the system from booting via a corrupt explorer.exe.manifest file.

The screensaver on Windows NT 4.0, 2000, XP, and 2002 does not verify if a domain account has already been locked when a valid password is provided, which makes it easier for users with physical access to conduct brute force password guessing.

Microsoft Windows NAT Helper Components (ipnathlp.dll) on Windows XP SP2, when Internet Connection Sharing is enabled, allows remote attackers to cause a denial of service (svchost.exe crash) via a malformed DNS query, which results in a null pointer dereference.

Win32k.sys (aka Graphics Device Interface (GDI)) in Windows 2000 and XP allows local users to cause a denial of service (system crash) by calling the ShowWindow function after receiving a WMNCCREATE message.

Windows XP with fast user switching and account lockout enabled allows local users to deny user account access by setting the fast user switch to the same user (self) multiple times, which causes other accounts to be locked out.

The user interface in the Windows Firewall does not properly display certain malformed entries in the Windows Registry, which makes it easier for attackers with administrator privileges to hide activities if the administrator only uses the Windows Firewall interface to monitor exceptions. NOTE: the vendor disputes this issue, saying that since administrative privileges are already required, it is not a vulnerability. CVE has not yet formally decided if such "information hiding" issues should be included.

Microsoft Windows XP SP1 allows local users to cause a denial of service (system crash) via an empty datagram to a raw IP over IP socket (IP protocol 4), as originally demonstrated using code in Python 2.3.

Memory leak in Microsoft Windows XP and Windows Server 2003 allows local users to cause a denial of service (memory exhaustion) by repeatedly creating and deleting directories using a non-standard tool such as smbmount.

The DCOM RPC interface for Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to cause network communications via an "alter context" call that contains additional data, aka the "Object Identity Vulnerability."

"Shatter" style vulnerability in the Window Management application programming interface (API) for Microsoft Windows 98, Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003 allows local users to gain privileges by using certain API functions to change properties of privileged programs using the SetWindowLong and SetWIndowLongPtr API functions.

The Microsoft Wireless Zero Configuration system (WZCS) allows local users to access WEP keys and pair-wise Master Keys (PMK) of the WPA pre-shared key via certain calls to the WZCQueryInterface API function in wzcsapi.dll.

The Microsoft Wireless Zero Configuration system (WZCS) stores WEP keys and pair-wise Master Keys (PMK) of the WPA pre-shared key in plaintext in memory of the explorer process, which allows attackers with access to process memory to steal the keys and access the network.

The FTP client in Windows XP SP1 and Server 2003, and Internet Explorer 6 SP1 on Windows 2000 SP4, when "Enable Folder View for FTP Sites" is enabled and the user manually initiates a file transfer, allows user-assisted, remote FTP servers to overwrite files in arbitrary locations via crafted filenames.

Unknown vulnerability in the PKINIT Protocol for Microsoft Windows 2000, Windows XP, and Windows Server 2003 could allow a local user to obtain information and spoof a server via a man-in-the-middle (MITM) attack between a client and a domain controller when PKINIT smart card authentication is being used.

Remote Desktop in Windows XP SP1 does not verify the "Force shutdown from a remote system" setting, which allows remote attackers to shut down the system by executing TSShutdn.exe.

Buffer overflow in Microsoft Windows 2000, Windows XP SP1 and SP2, and Windows Server 2003 allows local users to cause a denial of service (i.e., system crash) via a malformed request, aka "Object Management Vulnerability".

Sign extension vulnerability in the createBrushIndirect function in the GDI library (gdi32.dll) in Microsoft Windows XP, Server 2003, and possibly other versions, allows user-assisted attackers to cause a denial of service (application crash) via a crafted WMF file.

The Graphical Device Interface Plus library (gdiplus.dll) in Microsoft Windows XP SP2 allows context-dependent attackers to cause a denial of service (application crash) via certain images that trigger a divide-by-zero error, as demonstrated by a (1) .ico file, (2) .png file that crashes MSN Messenger, and (3) .jpg file that crashes Internet Explorer. NOTE: another researcher has not been able to reproduce this issue.

DataSourceControl in Internet Explorer 6 on Windows XP SP2 with Office installed allows remote attackers to cause a denial of service (crash) via a large negative integer argument to the getDataMemberName method of a OWC11.DataSourceControl.11 object, which leads to an integer overflow and a null dereference.

The RtlDosPathNameToNtPathNameU API function in NTDLL.DLL in Microsoft Windows 2000 SP4 and XP SP2 does not properly convert DOS style paths with trailing spaces into NT style paths, which allows context-dependent attackers to create files that cannot be accessed through the expected DOS path or prevent access to other similarly named files in the same directory, which prevents those files from being detected or disinfected by certain anti-virus and anti-spyware software.

Windows Firewall in Microsoft Windows XP SP2 does not produce application alerts when an application is executed using the NTFS Alternate Data Streams (ADS) filename:stream syntax, which might allow local users to launch a Trojan horse attack in which the victim does not obtain the alert that Windows Firewall would have produced for a non-ADS file.

Windows Firewall in Microsoft Windows XP SP2 produces incorrect application block alerts when the application filename is ".exe" (with no characters before the "."), which might allow local user-assisted users to trick a user into unblocking a Trojan horse program, as demonstrated by a malicious ".exe" program in a folder named "Internet Explorer," which triggers a question about whether to unblock the "Internet Explorer" program.

The VDM (Virtual DOS Machine) emulation environment for MS-DOS applications in Windows 2000, Windows XP SP2, and Windows Server 2003 allows local users to read the first megabyte of memory and possibly obtain sensitive information, as demonstrated by dumper.asm.

The process scheduler in the Microsoft Windows XP kernel does not make use of the process statistics kept by the kernel, performs scheduling based on CPU billing gathered from periodic process sampling ticks, and gives preference to "interactive" processes that perform voluntary sleeps, which allows local users to cause a denial of service (CPU consumption), as described in "Secretly Monopolizing the CPU Without Superuser Privileges."

\Device\NdisTapi (NDISTAPI.sys) in Microsoft Windows XP SP2 and 2003 SP1 uses weak permissions, which allows local users to write to the device and cause a denial of service, as demonstrated by using an IRQL to acquire a spinlock on paged memory via the NdisTapiDispatch function.

The AutoFill feature in Apple Safari before 5.0.1 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.1 on Mac OS X 10.4, allows remote attackers to obtain sensitive Address Book Card information via JavaScript code that forces keystroke events for input fields.

Microsoft Internet Explorer 6 and 7 on Windows XP and Vista does not prevent script from simulating user interaction with the AutoComplete feature, which allows remote attackers to obtain sensitive form information via a crafted web site, aka "AutoComplete Information Disclosure Vulnerability."