Microsoft reports also that this vulnerability gets exploited on the Internet already. There is no patch to close the security hole yet. Anyhow, the company provides a knowledgebase article with a “FixIt for me” workaround. This installer can be distributed in company networks as well as on home computers and disables the execution of the faulty component within the Internet Explorer. Make sure to execute it if you use any Windows flavour of Windows XP or Windows Server 2003!