Terminal Server in Windows NT and Windows 2000 allows remote attackers to cause a denial of service via a sequence of invalid Remote Desktop Protocol (RDP) packets.

An access violation vulnerability exists in the DirectComposition functionality win32kbase.sys driver version 10.0.22000.593 as part of Windows 11 version 22000.593 and version 10.0.20348.643 as part of Windows Server 2022 version 20348.643. A specially-crafted set of syscalls can lead to a reboot. An unprivileged user can run specially-crafted code to trigger Denial Of Service.

Windows Network Address Translation (NAT) Denial of Service Vulnerability

Windows Kerberos Denial of Service Vulnerability

Telnet Service for Windows 2000 Professional does not properly terminate incomplete connection attempts, which allows remote attackers to cause a denial of service by connecting to the server and not providing any input.

The Microsoft MS00-060 patch for IIS 5.0 and earlier introduces an error which allows attackers to cause a denial of service via a malformed request.

A certain ActiveX control in the Microsoft Internet Authentication Service (IAS) Helper COM Component in iashlpr.dll allows remote attackers to cause a denial of service (browser crash) via a large integer value in the first argument to the PutProperty method. NOTE: this issue was disclosed by an unreliable researcher, so it might be incorrect.

The user interface event dispatcher in Mozilla Firefox 3.0.3 on Windows XP SP2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a series of keypress, click, onkeydown, onkeyup, onmousedown, and onmouseup events. NOTE: it was later reported that Firefox 3.0.2 on Mac OS X 10.5 is also affected.

Crypto++ 5.6.4 incorrectly uses Microsoft's stack-based _malloca and _freea functions. The library will request a block of memory to align a table in memory. If the table is later reallocated, then the wrong pointer could be freed.

Microsoft Outlook Express before 4.72.3612.1700 allows a malicious user to send a message that contains a .., which can inadvertently cause Outlook to re-enter POP3 command mode and cause the POP3 session to hang.

Bonk variation of teardrop IP fragmentation denial of service.

Windows NT crashes or locks up when a Samba client executes a "cd .." command on a file share.

Denial of service in Windows NT DNS servers by flooding port 53 with too many characters.

A later variation on the Teardrop IP denial of service attack, a.k.a. Teardrop-2.

Windows Secure Channel Denial of Service Vulnerability

.NET Core and Visual Studio Denial of Service Vulnerability

Microsoft Windows SMBv3 suffers from a null pointer dereference in versions of Windows prior to the April, 2022 patch set. By sending a malformed FileNormalizedNameInformation SMBv3 request over a named pipe, an attacker can cause a Blue Screen of Death (BSOD) crash of the Windows kernel. For most systems, this attack requires authentication, except in the special case of Windows Domain Controllers, where unauthenticated users can always open named pipes as long as they can establish an SMB session. Typically, after the BSOD, the victim SMBv3 server will reboot.

Implementations of UDP application protocol are vulnerable to network loops. An unauthenticated attacker can use maliciously-crafted packets against a vulnerable implementation that can lead to Denial of Service (DOS) and/or abuse of resources.

Internet Connection Sharing (ICS) Denial of Service Vulnerability

Windows Network Address Translation (NAT) Denial of Service Vulnerability

Windows Secure Channel Denial of Service Vulnerability

Microsoft AllJoyn API Denial of Service Vulnerability

Windows Point-to-Point Protocol (PPP) Denial of Service Vulnerability

Windows DNS Client Denial of Service Vulnerability

Windows DNS Server Denial of Service Vulnerability

Windows Secure Socket Tunneling Protocol (SSTP) Denial of Service Vulnerability

Microsoft Outlook Denial of Service Vulnerability

.NET Denial of Service Vulnerability

.NET Framework Denial of Service Vulnerability

HTTP V3 Denial of Service Vulnerability

.NET Denial of Service Vulnerability

Mozilla Firefox 3.5.2 on Windows XP, in some situations possibly involving an incompletely configured protocol handler, does not properly implement setting the document.location property to a value specifying a protocol associated with an external application, which allows remote attackers to cause a denial of service (memory consumption) via vectors involving a series of function calls that set this property, as demonstrated by (1) the chromehtml: protocol and (2) the aim: protocol.

The WideCharToMultiByte function in Microsoft Windows 2000 before Update Rollup 1 for SP4 does not properly convert strings with Japanese composite characters in the last character, which could prevent the string from being null terminated and lead to data corruption or enable buffer overflow attacks.

Microsoft Internet Explorer 5.2.3 for Mac OS allows remote attackers to cause a denial of service (crash) via a web page with malformed attributes in a BGSOUND tag, possibly involving double-quotes in an about: URI.

Microsoft AllJoyn API Denial of Service Vulnerability

Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability

.NET Denial of Service Vulnerability

mDNSResponder in the Bonjour Namespace Provider in Apple Bonjour for Windows before 1.0.5 allows attackers to cause a denial of service (NULL pointer dereference and application crash) by resolving a crafted .local domain name that contains a long label.

The ISA Firewall service in Microsoft Internet Security and Acceleration (ISA) Server 2000 allows remote attackers to cause a denial of service (Wspsrv.exe crash) via a large amount of SecureNAT network traffic.

Microsoft Front Page allows attackers to cause a denial of service (crash) via a crafted style tag in a web page.

The Perforce service (p4s.exe) in Perforce Server 2007.3/143793 and earlier allows remote attackers to cause a denial of service (daemon crash) via a (1) server-DiffFile or (2) server-ReleaseFile command with a large integer value, which is used in an array initialization calculation, and leads to invalid memory access.

dhost.exe in Novell eDirectory 8.7.3 before sp10 and 8.8.2 allows remote attackers to cause a denial of service (CPU consumption) via an HTTP request with (1) multiple Connection headers or (2) a Connection header with multiple comma-separated values. NOTE: this might be similar to CVE-2008-1777.

Memory leak in Windows Management Instrumentation (WMI) service allows attackers to cause a denial of service (memory consumption and crash) by creating security contexts more quickly than they can be cleared from the RPC cache.

Microsoft MSN Messenger Service 1.0 through 4.6 allows remote attackers to cause a denial of service (crash) via an invite request that contains hex-encoded spaces (%20) in the Invitation-Cookie field.