Security Advisory

Microsoft Security Advisory 979352

Vulnerability in Internet Explorer Could Allow Remote Code Execution

Published: January 14, 2010 | Updated: January 21, 2010

Version: 2.0

General Information

Executive Summary

Microsoft has completed the investigation the public reports of this vulnerability. We have issued MS10-002 to address this issue. For more information about this issue, including download links for an available security update, please review MS10-002. The vulnerability addressed is the HTML Object Memory Corruption Vulnerability - CVE-2010-0249.

Other Information



  • Customers in the United States and Canada can receive technical support from Security Support. For more information about available support options, see Microsoft Help and Support.
  • International customers can receive support from their local Microsoft subsidiaries. For more information about how to contact Microsoft for international support issues, visit International Support.
  • Microsoft TechNet Security provides additional information about security in Microsoft products.


The information provided in this advisory is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.


  • V1.0 (January 14, 2010): Advisory published
  • V1.1 (January 15, 2010): Revised Executive Summary to reflect investigation of limited targeted attacks. Added Data Execution Prevention (DEP) information to Mitigating Factors section. Updated "How does configuring the Internet zone security setting to High protect me from this vulnerability?" in the Frequently Asked Questions section.
  • V1.2 (January 20, 2010): Revised Executive Summary to reflect the changing nature of attacks attempting to exploit the vulnerability. Clarified information in the Mitigating Factors section for Data Execution Prevention (DEP) and Microsoft Outlook, Outlook Express, and Windows Mail. Clarified several Frequently Asked Questions to provide further details about the vulnerability and ways to limit the possibility of exploitation. Added "Enable or disable ActiveX controls in Office 2007" and "Do not open unexpected files" to the Workarounds section.
  • V2.0 (January 21, 2010): Advisory updated to reflect publication of security bulletin

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