Microsoft has issued an advisory to warn about an under-attack zero-day vulnerability affecting its PowerPoint software. The flaw allows remote code execution if a user opens a booby-trapped PowerPoint file. The company described the attacks as limited and targeted The company recommends the following workarounds: Do not open or save Office files that you receive from un-trusted sources or that are received unexpectedly from trusted sources. Use Microsoft Office File Block policy to block the opening of Office 2003 and earlier documents from unknown or untrusted sources and locations.
Source: https://threatpost.com/microsoft-issues-powerpoint-zero-day-warning-040209/72535/