Just 5 days after previous Microsoft Word Unspecified Memory Corruption Vulnerability (post), new vulnerability is discovered. Secunia assigned extremely critical level to this vulnerability. A vulnerability has been reported in Microsoft Word, which can be exploited by malicious people to compromise a user’s system. The vulnerability is caused due to an unspecified error when processing Word documents. No more information is currently available. Original Microsoft Advisory is here.
According to Microsoft, this is a different vulnerability than previous one described here.
The vulnerability is already being actively exploited.
Solution for now is: Do not open untrusted Office documents. 🙂