Microsoft Outlook Express 6.0 leaks the default news server account when a user responds to a "watched" conversation thread, which could allow remote attackers to obtain sensitive information.

Stack-based buffer overflow in the news reader for Microsoft Outlook Express (MSOE.DLL) 5.5 SP2, 6, and 6 SP1 allows remote malicious NNTP servers to execute arbitrary code via a LIST response with a long second field.

Microsoft Outlook 2002 Connector for IBM Lotus Domino 2.0 allows local users to save passwords and login credentials locally, even when password caching is disabled by a group policy.

Microsoft Outlook 2003 and Outlook Web Access (OWA) 2003 do not properly display comma separated addresses in the From field in an e-mail message, which could allow remote attackers to spoof e-mail addresses.

Microsoft Outlook Express 6.0 allows remote attackers to bypass intended access restrictions, load content from arbitrary sources into the Outlook context, and facilitate phishing attacks via a "BASE HREF" with the target set to "_top".

Microsoft Outlook 2000 and 2003, when configured to use Microsoft Word 2000 or 2003 as the e-mail editor and when forwarding e-mail, does not properly handle an opening OBJECT tag that does not have a closing OBJECT tag, which causes Outlook to automatically download the URI in the data property of the OBJECT tag and might allow remote attackers to execute arbitrary code.

Outlook Express 6.0, when sending multipart e-mail messages using the "Break apart messages larger than" setting, leaks the BCC recipients of the message to the addresses listed in the To and CC fields, which may allow remote attackers to obtain sensitive information.

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.

Buffer overflow in the JPEG (JPG) parsing engine in the Microsoft Graphic Device Interface Plus (GDI+) component, GDIPlus.dll, allows remote attackers to execute arbitrary code via a JPEG image with a small JPEG COM field length that is normalized to a large integer length before a memory copy operation.

Outlook 2003, when replying to an e-mail message, stores certain files in a predictable location for the "src" of an img tag of the original message, which allows remote attackers to bypass zone restrictions and exploit other issues that rely on predictable locations, as demonstrated using a shell: URI.