Vulnerable Systems:
* Microsoft Publisher 2010 (32-bit editions)
* Microsoft Publisher 2010 (64-bit editions)
* Microsoft Publisher 2003 Service Pack 3
* Microsoft Publisher 2002 Service Pack 3
The vulnerability is caused by a memory corruption error when handling malformed Publisher documents, which could be exploited by remote attackers to execute arbitrary code by tricking a user into opening a malicious PUB file.
Note: The Publisher file format is not publicly documented.