Falha crítica no Microsoft Word

Cuidado a abrir documentos Word, existe uma falha de segurança crítica ainda não corrigida, só abrir documentos vindos de pessoas em que se confia.

Description:
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 parsing strings in Word documents and can be exploited to corrupt memory thereby allowing execution of arbitrary code on the user's system.

NOTE: The vulnerability is currently being actively exploited.

The vulnerability is reported in Microsoft Word 2000. Other versions may also be affected.

Solution:
Do not open untrusted Office documents.

Fonte: Secunia