Vulnerability Note VU#130614

Microsoft Outlook Express vulnerable to remote code execution

Original Release date: 14 Jun 2005 | Last revised: 20 Jun 2005


A vulnerability in Microsoft Outlook Express's NNTP response parsing may allow an attacker to execute arbitrary code.


Microsoft Outlook Express contains support for Network News Transfer Protocol (NNTP) data, which is defined in RFC 977 and RFC 2980. A flaw in Outlook Express' handling of NNTP responses may lead to a buffer overflow condition if a specially-crafted reply is sent by a compromised or malicious NNTP server.


A remote, unauthenticated attacker with the ability to control an NNTP server that a host is connected to may be able to execute arbitrary code in the security context of the local user.


Apply an Update

Please see Microsoft Security Bulletin MS05-030 for more information, such as workarounds and patches.

Utilize Workarounds

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Microsoft CorporationAffected-14 Jun 2005
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



Thanks to Microsoft for information on this vulnerability, who in turn credit iDEFENSE with reporting this vulnerability.

This document was written by Ken MacInnis.

Other Information

  • CVE IDs: CAN-2005-1213
  • Date Public: 14 Jun 2005
  • Date First Published: 14 Jun 2005
  • Date Last Updated: 20 Jun 2005
  • Severity Metric: 2.81
  • Document Revision: 9


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