Some vulnerabilities have been reported in Microsoft Word, which can be exploited by malicious people to compromise a user's system.

1) An unspecified error within the handling of data in arrays can be exploited via a specially crafted Word document.

2) An unspecified error when handling objects in Word Document streams can be exploited to cause memory corruption via a specially crafted Word document.

NOTE: This vulnerability is currently being actively exploited.

3) An unspecified error when processing certain rich text (RTF) properties can be exploited to cause memory corruption via a specially crafted file.

Successful exploitation of the vulnerabilities allows execution of arbitrary code.

Solution
Apply patches.
Further details available to Secunia VIM customers

Provided and/or discovered by
1) Reported by the vendor.
2) Discovered as a 0-day.
3) Discovered by an anonymous person and reported via iDefense Labs.

Changelog
Further details available to Secunia VIM customers

Original Advisory
MS07-024 (KB934232):
http://www.microsoft.com/technet/security/Bulletin/MS07-024.mspx

Microsoft:
http://www.microsoft.com/technet/security/advisory/933052.mspx

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=525

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers