The URL validation functionality in Microsoft Internet Explorer 5.01, 6, 6 SP1, 7 and 8, and the ShellExecute API function in Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2, does not properly process input parameters, which allows remote attackers to execute arbitrary local programs via a crafted URL, aka "URL Validation Vulnerability."

Microsoft Internet Explorer 6, 6 SP1, 7, and 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to memory corruption, aka "Uninitialized Memory Corruption Vulnerability," a different vulnerability than CVE-2009-2530 and CVE-2009-2531.

Microsoft Internet Explorer 7.0 on Windows XP and Windows Server 2003 allows remote attackers to have an unspecified impact via a certain XML document that references a crafted web site in the SRC attribute of an image element, related to a "0day Vulnerability."

Microsoft Internet Explorer 5.01, 6, and 7 uses certain COM objects from Imjpcksid.dll as ActiveX controls, which allows remote attackers to execute arbitrary code via unspecified vectors. NOTE: this issue might be related to CVE-2006-4193.

Use-after-free vulnerability in the CRecalcProperty function in mshtml.dll in Microsoft Internet Explorer 5.01 through 7 allows remote attackers to execute arbitrary code by calling the setExpression method and then modifying the outerHTML property of an HTML element, one variant of "Uninitialized Memory Corruption Vulnerability."

The URL handling in Shell32.dll in the Windows shell in Microsoft Windows XP and Server 2003, with Internet Explorer 7 installed, allows remote attackers to execute arbitrary programs via invalid "%" sequences in a mailto: or other URI handler, as demonstrated using mIRC, Outlook, Firefox, Adobe Reader, Skype, and other applications. NOTE: this issue might be related to other issues involving URL handlers in Windows systems, such as CVE-2007-3845. There also might be separate but closely related issues in the applications that are invoked by the handlers.

Unspecified vulnerability in the FTP implementation in Microsoft Internet Explorer allows remote attackers to "see a valid memory address" via unspecified vectors, a different issue than CVE-2007-0217.

Race condition in Microsoft Internet Explorer 5.01, 6, and 7 allows remote attackers to execute arbitrary code by causing Internet Explorer to install multiple language packs in a way that triggers memory corruption, aka "Language Pack Installation Vulnerability."

Multiple buffer overflows in the (1) ActiveListen (Xlisten.dll) and (2) ActiveVoice (Xvoice.dll) speech controls, as used by Microsoft Internet Explorer 5.01, 6, and 7, allow remote attackers to execute arbitrary code via a crafted ActiveX object that triggers memory corruption, as demonstrated via the ModeName parameter to the FindEngine function in ACTIVEVOICEPROJECTLib.DirectSS.

Unspecified vulnerability in the mdsauth.dll COM object in Microsoft Windows Media Server in the Microsoft Internet Explorer 5.01 SP4 on Windows 2000 SP4; 6 SP1 on Windows 2000 SP4; 6 and 7 on Windows XP SP2, or Windows Server 2003 SP1 or SP2; or 7 on Windows Vista allows remote attackers to overwrite arbitrary files via unspecified vectors, aka the "Arbitrary File Rewrite Vulnerability."

Unspecified vulnerability in Microsoft Internet Explorer 6 allows remote attackers to execute arbitrary code via a crafted Cascading Style Sheets (CSS) tag that triggers memory corruption.

Microsoft Internet Explorer 5.01, 6, and 7 allows remote attackers to execute arbitrary code by causing Internet Explorer to access an uninitialized or deleted object, related to prototype variables and table cells, aka "Uninitialized Memory Corruption Vulnerability."

Microsoft Internet Explorer 6 SP1 on Windows 2000 SP4; 6 and 7 on Windows XP SP2, or Windows Server 2003 SP1 or SP2; and 7 on Windows Vista allows remote attackers to execute arbitrary code via certain property methods that may trigger memory corruption, aka "Property Memory Corruption Vulnerability."

Use-after-free vulnerability in Microsoft Internet Explorer 7 on Windows XP SP2, Windows Server 2003 SP1 or SP2, or Windows Vista allows remote attackers to execute arbitrary code via crafted HTML objects, resulting in accessing deallocated memory of CMarkup objects, aka the second of two "HTML Objects Memory Corruption Vulnerabilities" and a different issue than CVE-2007-0946.

Microsoft Internet Explorer 5.01 SP4 on Windows 2000 SP4; 6 SP1 on Windows 2000 SP4; 6 and 7 on Windows XP SP2, or Windows Server 2003 SP1 or SP2; and possibly 7 on Windows Vista does not properly "instantiate certain COM objects as ActiveX controls," which allows remote attackers to execute arbitrary code via a crafted COM object from chtskdic.dll.

Unspecified vulnerability in Microsoft Internet Explorer 7 on Windows XP SP2, Windows Server 2003 SP1 or SP2, or Windows Vista allows remote attackers to execute arbitrary code via crafted HTML objects, which results in memory corruption, aka the first of two "HTML Objects Memory Corruption Vulnerabilities" and a different issue than CVE-2007-0947.

Microsoft Internet Explorer 5.01 and 6 allows remote attackers to execute arbitrary code by instantiating certain COM objects from Urlmon.dll, which triggers memory corruption during a call to the IObjectSafety function.

Microsoft Internet Explorer 5.01, 6, and 7 uses certain COM objects from (1) Msb1fren.dll, (2) Htmlmm.ocx, and (3) Blnmgrps.dll as ActiveX controls, which allows remote attackers to execute arbitrary code via unspecified vectors, a different issue than CVE-2006-4697.

Integer overflow in the Vector Markup Language (VML) implementation (vgx.dll) in Microsoft Internet Explorer 5.01, 6, and 7 on Windows 2000 SP4, XP SP2, Server 2003, and Server 2003 SP1 allows remote attackers to execute arbitrary code via a crafted web page that contains unspecified integer properties that cause insufficient memory allocation and trigger a buffer overflow, aka the "VML Buffer Overrun Vulnerability."