Microsoft Internet Explorer 5.01 through 6 does not always return the correct IOleClientSite information when dynamically creating an embedded object, which could cause Internet Explorer to run the object in the wrong security context or zone, and allow remote attackers to execute arbitrary code.

Microsoft Internet Explorer 5.01 through 6 does not always correctly identify the domain that is associated with a browser window, which allows remote attackers to obtain sensitive cross-domain information and spoof sites by running script after the user has navigated to another site.

jscript.dll in Microsoft Internet Explorer 6.0 SP1 and earlier allows remote attackers to cause a denial of service (application crash) via a Shockwave Flash object that contains ActionScript code that calls VBScript, which in turn calls the Javascript document.write function, which triggers a null dereference.

Microsoft Internet Explorer 5.01, 5.5, and 6 allows remote attackers to bypass the Kill bit settings for dangerous ActiveX controls via unknown vectors involving crafted HTML, which can expose the browser to attacks that would otherwise be prevented by the Kill bit setting. NOTE: CERT/CC claims that MS05-054 fixes this issue, but it is not described in MS05-054.

Race condition in Microsoft Internet Explorer allows user-assisted attackers to overwrite arbitrary files and possibly execute code by tricking a user into performing a drag-and-drop action from certain objects, such as file objects within a folder view, then predicting the drag action, and re-focusing to a malicious window.

Drivers for certain display adapters, including (1) an unspecified ATI driver and (2) an unspecified Intel driver, might allow remote attackers to cause a denial of service (system crash) via a large JPEG image, as demonstrated in Internet Explorer using stoopid.jpg with a width and height of 9999999.

The CLSID_ApprenticeICW control allows remote attackers to cause a denial of service (Internet Explorer crash) by creating a COM object of the class associated with the control's CLSID, which is not intended for use within Internet Explorer.

Unknown vulnerability in Internet Explorer 5.0, 5.5, and 6.0 allows remote attackers to execute arbitrary code via a web site or an HTML e-mail containing a crafted JPEG image that causes memory corruption, aka "JPEG Image Rendering Memory Corruption Vulnerability".

Unknown vulnerability in Internet Explorer 5.0, 5.5, and 6.0 allows remote attackers to obtain information and possibly execute code when browsing from a web site to a web folder view using WebDAV, aka "Web Folder Behaviors Cross-Domain Vulnerability".

Internet Explorer 5.0, 5.5, and 6.0 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a web page with embedded CLSIDs that reference certain COM objects that are not ActiveX controls, including (1) devenum.dll, (2) diactfrm.dll, (3) wmm2filt.dll, (4) fsusd.dll, (5) dmdskmgr.dll, (6) browsewm.dll, (7) browseui.dll, (8) shell32.dll, (9) mshtml.dll, (10) inetcfg.dll, (11) infosoft.dll, (12) query.dll, (13) syncui.dll, (14) clbcatex.dll, (15) clbcatq.dll, (16) comsvcs.dll, and (17) msconf.dll, which causes memory corruption, aka "COM Object Instantiation Memory Corruption Vulnerability," a different vulnerability than CVE-2005-2087.

Internet Explorer 5.01 SP4 up to 6 on various Windows operating systems, including IE 6.0.2900.2180 on Windows XP, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a web page with embedded CLSIDs that reference certain COM objects that are not ActiveX controls, as demonstrated using the JVIEW Profiler (Javaprxy.dll). NOTE: the researcher says that the vendor could not reproduce this problem.

Microsoft Internet Explorer 6 SP2 allows remote attackers to cause a denial of service (infinite loop and application crash) via two embedded files that call each other.

Internet Explorer 5.01, 5.5, and 6 allows remote attackers to spoof a less restrictive security zone and execute arbitrary code via an HTML page containing URLs that contain hostnames that have been double hex encoded, which are decoded twice to generate a malicious hostname, aka the "URL Decoding Zone Spoofing Vulnerability."

Internet Explorer 5.01, 5.5, and 6 does not properly validate certain URLs in Channel Definition Format (CDF) files, which allows remote attackers to obtain sensitive information or execute arbitrary code, aka the "Channel Definition Format (CDF) Cross Domain Vulnerability."

Race condition in the memory management routines in the DHTML object processor in Microsoft Internet Explorer 5.01, 5.5, and 6 allows remote attackers to execute arbitrary code via a malicious web page or HTML e-mail, aka "DHTML Object Memory Corruption Vulnerability".

Buffer overflow in the URL processor of Microsoft Internet Explorer 5.01, 5.5, and 6 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a URL with a long hostname, aka "URL Parsing Memory Corruption Vulnerability."

Buffer overflow in the Content Advisor in Microsoft Internet Explorer 5.01, 5.5, and 6 allows remote attackers to execute arbitrary code via a crafted Content Advisor file, aka "Content Advisor Memory Corruption Vulnerability."

Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5.01 through 6, when users who visit online gaming sites that are associated with MSN, allows remote attackers to execute arbitrary code via the SetupData parameter.

Microsoft Internet Explorer 6 allows remote attackers to spoof the address bar to facilitate phishing attacks via Javascript that uses an invalid URI, modifies the Location field, then uses history.back to navigate to the previous domain, aka NullyFake.

Hastymail 1.0.1 and earlier (stable) and 1.1 and earlier (development) does not send the "attachment" parameter in the Content-Disposition field for attachments, which causes the attachment to be rendered inline by Internet Explorer when the victim clicks the download link, which facilitates cross-site scripting (XSS) and possibly other attacks.