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Alert (SA06-167A)

Microsoft Excel Vulnerability

Systems Affected

  • Microsoft Excel 2003
  • Microsoft Excel XP (2002)
  • Microsoft Excel for Mac

Microsoft Excel is included in Microsoft Office. Other versions of Excel and other Office programs may also be affected.


A vulnerability in Microsoft Excel could allow an attacker to gain control of your computer.


Do not open untrusted Excel documents

At the time of writing, an update is not available. Do not open unfamiliar or unexpected Excel or other Office documents, including those received as email attachments or hosted on a web site. Please see US-CERT Cyber Security Tip ST04-010 for more information.


An attacker could exploit a vulnerability in Microsoft Excel by convincing a user to open a specially crafted Excel document. The Excel document could be included as an email attachment or hosted on a web site. It may also be possible to exploit the vulnerability using Excel documents embedded in other Office documents.

For more technical information, see US-CERT Technical Alert TA06-167A.



Revision History

  • June 16, 2006: Initial release

Last updated

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