Internet Explorer 5.0, 5.0.1 and 5.5 with JavaScript execution enabled allows remote attackers to determine the existence of arbitrary files via a script tag with a src parameter that references a non-JavaScript file, then using the onError event handler to monitor the results.

danim.dll in Microsoft Internet Explorer 6 allows remote attackers to cause a denial of service (application crash) by accessing the Data property of a DirectAnimation DAUserData object before it is initialized, which triggers a NULL pointer dereference.

Internet Explorer 6 on Windows XP allows remote attackers to cause a denial of service (crash) by setting the Enabled property of a DXTFilter ActiveX object to true, which triggers a null dereference.

Microsoft Internet Explorer 5.0.1 through 6.0 on Windows 2000 or Windows XP allows remote attackers to cause a denial of service (crash) via an OBJECT tag that contains a crafted CLASSID (CLSID) value of "CLSID:00022613-0000-0000-C000-000000000046".

Internet Explorer 5.5 and earlier executes Telnet sessions using command line arguments that are specified by the web site, which could allow remote attackers to execute arbitrary commands if the IE client is using the Telnet client provided in Services for Unix (SFU) 2.0, which creates session transcripts.

Internet Explorer, with a security setting below Medium, allows remote attackers to execute arbitrary commands via a malicious web page that uses the FileSystemObject ActiveX object.

Internet Explorer 6 on Windows XP SP2 allows remote attackers to cause a denial of service (crash) by setting the fonts property of the HtmlDlgSafeHelper object, which triggers a null dereference.

Microsoft Internet Explorer 6.0 and 6.0 SP1 allows remote attackers to cause a denial of service via an HTML page with an A tag containing a long title attribute. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Microsoft Internet Explorer 6.0, when handling an expired CA-CERT in a webserver's certificate chain during a SSL/TLS handshake, does not prompt the user before searching for and finding a newer certificate, which may allow attackers to perform a man-in-the-middle attack. NOTE: it is not clear whether this poses a vulnerability.

Microsoft Internet Explorer 6 allows remote attackers to execute arbitrary code by using the document.getElementByID Javascript function to access crafted Cascading Style Sheet (CSS) elements, and possibly other unspecified vectors involving certain layout positioning combinations in an HTML file.

Microsoft Internet Explorer 6 allows remote attackers to cause a denial of service (crash) by declaring the sourceURL attribute on an uninitialized DirectAnimation.StructuredGraphicsControl ActiveX Object, which triggers a null dereference.

Microsoft Internet Explorer 5.0 through 6.0 allows remote attackers to cause a denial of service (crash) via an object of type "text/html" with the DATA field that identifies the HTML document that contains the object, which may cause infinite recursion.

Windows Scripting Host in Internet Explorer 5.5 and earlier allows remote attackers to read arbitrary files via the GetObject Javascript function and the htmlfile ActiveX object.

Heap-based buffer overflow in HTML Help ActiveX control (hhctrl.ocx) in Microsoft Internet Explorer 6.0 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code by repeatedly setting the Image field of an Internet.HHCtrl.1 object to certain values, possibly related to improper escaping and long strings.

Microsoft Internet Explorer 6 allows remote attackers to cause a denial of service (crash) by setting the Filter property of an ADODB.Recordset ActiveX object to certain values multiple times, which triggers a null dereference.

Microsoft Internet Explorer 5.5 through 6.0 allows remote attackers to cause a denial of service (crash) via a Cascading Style Sheet (CSS) with the p{cssText} element declared and a bold font weight.

Microsoft Internet Explorer 6.0 does not properly handle Drag and Drop events, which allows remote user-assisted attackers to execute arbitrary code via a link to an SMB file share with a filename that contains encoded ..\ (%2e%2e%5c) sequences and whose extension contains the CLSID Key identifier for HTML Applications (HTA), aka "Folder GUID Code Execution Vulnerability." NOTE: directory traversal sequences were used in the original exploit, although their role is not clear.

Cross-domain vulnerability in Microsoft Internet Explorer 6.0 allows remote attackers to access restricted information from other domains via an object tag with a data parameter that references a link on the attacker's originating site that specifies a Location HTTP header that references the target site, which then makes that content available through the outerHTML attribute of the object, aka "Redirect Cross-Domain Information Disclosure Vulnerability."

The browser history feature in Microsoft Internet Explorer 5.5 through 6.0 allows remote attackers to execute arbitrary script as other users and steal authentication information via cookies by injecting JavaScript into the URL, which is executed when the user hits the Back button.

A function in Internet Explorer 5.0 through 5.5 does not properly verify the domain of a frame within a browser window, which allows a remote attacker to read client files, aka a new variant of the "Frame Domain Verification" vulnerability.