Windows 95, when Remote Administration and File Sharing for NetWare Networks is enabled, creates a share (C$) when an administrator logs in remotely, which allows remote attackers to read arbitrary files by mapping the network drive.

Windows NT 4.0 does not properly shut down invalid named pipe RPC connections, which allows remote attackers to cause a denial of service (resource exhaustion) via a series of connections containing malformed data, aka the "Named Pipes Over RPC" vulnerability.

Windows NT 4.0 allows remote attackers to cause a denial of service (crash) via extra source routing data such as (1) a Routing Information Field (RIF) field with a hop count greater than 7, or (2) a list containing duplicate Token Ring IDs.

Tcpip.sys in Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service via an ICMP Subnet Mask Address Request packet, when certain multiple IP addresses are bound to the same network interface.

SystemSoft SystemWizard package in HP Pavilion PC with Windows 98, and possibly other platforms and operating systems, installs two ActiveX controls that are marked as safe for scripting, which allows remote attackers to execute arbitrary commands via a malicious web page that references (1) the Launch control, or (2) the RegObj control.

Netbt.sys in Windows NT 4.0 allows remote malicious DNS servers to cause a denial of service (crash) by returning 0.0.0.0 as the IP address for a DNS host name lookup.

Office Shortcut Bar (OSB) in Windows 3.51 enables backup and restore permissions, which are inherited by programs such as File Manager that are started from the Shortcut Bar, which could allow local users to read folders for which they do not have permission.

Passfilt.dll in Windows NT SP2 allows users to create a password that contains the user's name, which could make it easier for an attacker to guess.

Windows NT 4.0 SP4 and earlier allows local users to gain privileges by modifying the symbolic link table in the \?? object folder using a different case letter (upper or lower) to point to a different device.

When an administrator in Windows NT or Windows 2000 changes a user policy, the policy is not properly updated if the local ntconfig.pol is not writable by the user, which could allow local users to bypass restrictions that would otherwise be enforced by the policy, possibly by changing the policy file to be read-only.

When the Ntconfig.pol file is used on a server whose name is longer than 13 characters, Windows NT does not properly enforce policies for global groups, which could allow users to bypass restrictions that were intended by those policies.

Windows NT 4.0 allows local users to cause a denial of service via a user mode application that closes a handle that was opened in kernel mode, which causes a crash when the kernel attempts to close the handle.

Win32k.sys in Windows NT 4.0 before SP2 allows local users to cause a denial of service (crash) by calling certain WIN32K functions with incorrect parameters.

Windows NT 3.51 and 4.0 allow local users to cause a denial of service (crash) by running a program that creates a large number of locks on a file, which exhausts the NonPagedPool.

Windows NT 4.0 allows local users to cause a denial of service (crash) via an illegal kernel mode address to the functions (1) GetThreadContext or (2) SetThreadContext.

GINA in Windows NT 4.0 allows attackers with physical access to display a portion of the clipboard of the user who has locked the workstation by pasting (CTRL-V) the contents into the username prompt.

RSH service utility RSHSVC in Windows NT 3.5 through 4.0 does not properly restrict access as specified in the .Rhosts file when a user comes from an authorized host, which could allow unauthorized users to access the service by logging in from an authorized host.

A bug in Intel Pentium processor (MMX and Overdrive) allows local users to cause a denial of service (hang) in Intel-based operating systems such as Windows NT and Windows 95, via an invalid instruction, aka the "Invalid Operand with Locked CMPXCHG8B Instruction" problem.

Unknown vulnerability in (1) loadmodule, and (2) modload if modload is installed with setuid/setgid privileges, in SunOS 4.1.1 through 4.1.3c, and Open Windows 3.0, allows local users to gain root privileges via environment variables, a different vulnerability than CVE-1999-1586.

The default configurations for McAfee Virus Scan and Norton Anti-Virus virus checkers do not check files in the RECYCLED folder that is used by the Windows Recycle Bin utility, which allows attackers to store malicious code without detection.