Heap-based buffer overflow in Internet Explorer 6 allows remote attackers to execute arbitrary code via long (1) SRC or (2) NAME attributes in IFRAME, FRAME, and EMBED elements, as originally discovered using the mangleme utility, aka "the IFRAME vulnerability" or the "HTML Elements Vulnerability."

Internet Explorer 5.01 through 6 allows remote attackers to spoof arbitrary web sites by injecting content from one window into another window whose name is known but resides in a different domain, as demonstrated using a pop-up window on a trusted web site, aka the "window injection" vulnerability. NOTE: later research shows that Internet Explorer 7 on Windows XP SP2 is also vulnerable.

CRLF injection vulnerability in Microsoft Internet Explorer 6.0.2800.1106 and earlier allows remote attackers to execute arbitrary FTP commands via an ftp:// URL that contains a URL-encoded newline ("%0a") before the FTP command, which causes the commands to be inserted into the resulting FTP session, as demonstrated using a PORT command.

Internet Explorer 6 allows remote attackers to bypass the popup blocker via the document object model (DOM) methods in the DHTML Dynamic HTML (DHTML) Editing Component (DEC) and Javascript that calls showModalDialog.

Microsoft Internet Explorer allows remote attackers to cause a denial of service (application crash from memory consumption), as demonstrated using Javascript code that continuously creates nested arrays and then sorts the newly created arrays.

pnxr3260.dll in the RealOne 2.0 build 6.0.11.868 browser plugin, as used in Internet Explorer, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted embed tag.

Microsoft Internet Explorer 6.0 SP1 does not properly handle certain character strings in the Path attribute, which can cause it to modify cookies in other domains when the attacker's domain name is within the target's domain name or when wildcard DNS is being used, which allows remote attackers to hijack web sessions.

msxml3.dll in Internet Explorer 6.0.2600.0 allows remote attackers to cause a denial of service (crash) via a single & (ampersand) in a <Ref href> link, which triggers a parsing error, possibly due to missing portions of the URI.

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.

Microsoft Windows Internet Explorer 5.5 and 6.0 allows remote attackers to execute arbitrary code via an embedded script that uses Shell Helper objects and a shortcut (link) to execute the target script.

Microsoft Internet Explorer 6.0.2600 on Windows XP allows remote attackers to cause a denial of service (browser crash) via a shell: URI with double backslashes (\\) in an HTML tag such as IFRAME or A.

Microsoft Internet Explorer 5.0 through 6.0 allows remote attackers to bypass cross-frame scripting restrictions and capture keyboard events from other domains via an HTML document with Javascript that is outside a frameset that includes the target domain, then forcing the frameset to maintain focus. NOTE: the discloser claimed that the vendor does not categorize this as a vulnerability, but it can be used in a spoofing scenario; the discloser provides alternate scenarios. Spoofing scenarios are currently included in CVE.

Microsoft Internet Explorer 6.0 allows remote attackers to cause a denial of service (infinite loop and crash) via an IFRAME with "?" as the file source.

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.

Directory traversal vulnerability in Microsoft Internet Explorer 5.01, 5.5, and 6.0 allows remote malicious FTP servers to overwrite arbitrary files via .. (dot dot) sequences in filenames returned from a LIST command.

Internet Explorer 6.x allows remote attackers to install arbitrary programs via mousedown events that call the Popup.show method and use drag-and-drop actions in a popup window, aka "HijackClick 3" and the "Script in Image Tag File Download Vulnerability."

Internet Explorer 6.0 SP1 and earlier, and possibly other versions, allows remote attackers to cause a denial of service (application crash from "memory corruption") via certain malformed Cascading Style Sheet (CSS) elements that trigger heap-based buffer overflows, as demonstrated using the "<STYLE>@;/*" string, possibly due to a missing comment terminator that may cause an invalid length to trigger a large memory copy operation, aka the "CSS Heap Memory Corruption Vulnerability."

Mozilla Firefox 0.9.2 allows web sites to set cookies for country-specific top-level domains, such as .ltd.uk, .plc.uk, and .sch.uk, which could allow remote attackers to perform a session fixation attack and hijack a user's HTTP session. NOTE: it was later reported that 2.x is also affected.

Microsoft Internet Explorer 6.0, Outlook 2002, and Outlook 2003 allow remote attackers to cause a denial of service (CPU consumption), if "Do not save encrypted pages to disk" is disabled, via a web site or HTML e-mail that contains two null characters (%00) after the host name.

The execCommand method in Microsoft Internet Explorer 6.0 SP2 allows remote attackers to bypass the "File Download - Security Warning" dialog and save arbitrary files with arbitrary extensions via the SaveAs command.