Synopsis :

The remote Windows host is affected by a code execution
vulnerability.

Description :

The remote Windows host is affected by a code execution vulnerability.
By tricking a user into opening a legitimate rich text file (.rtf), text
file (.txt), or Word document (.doc) that is in the same directory as a
specially crafted library file, a remote, unauthenticated user could
execute arbitrary code on the host subject to the privileges of the user
running the affected component.

Solution :

Microsoft has released a set of patches for Windows XP, 2003, Vista,
2008, 7, and 2008 R2 :

http://technet.microsoft.com/en-us/security/bulletin/ms11-071

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.7
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true