Everyone needs to be aware of a new PowerPoint vulnerability that is actively being exploited and that does not currently have a patch available to address it. Microsoft is currently investigating the issue and may issue a patch sometime in the near future. Take caution when opening PowerPoint presentations that you are not explicitly expecting from a customer. I would also suggest staying away from any online presentations you may bump into or emails you happen to receive from a friend that include a PowerPoint attachment. Be safe ask the friend before opening the attachment.
Here’s some additional information about the vulnerability.