Microsoft warns of zero-day vulnerability being targeted via PowerPoint
27 October 2014
Microsoft has issued a security advisory, warning of a critical zero-day vulnerability (a previously unknown bug for which there is currently no fix available) affecting all versions of Windows, except Server 2003.
Microsoft's warning states the vulnerability is currently being targeted in a limited number of attacks via Microsoft PowerPoint files. The vulnerability could allow an attacker to obtain remote control of your computer.
Microsoft does not yet have a software update available to address this issue.
You should be cautious about opening files from untrustworthy sources, particularly PowerPoint files (.PPT, PPTX) until an update is released.
There are a number of other mitigating conditions outlined by Microsoft in the advisory. As a temporary solution, until a security update becomes available, Microsoft suggests a Fix it workaround which blocks the known attacks targeting this vulnerability. Microsoft is also preparing a security update to permanently address the issue.
System administrators should evaluate implementing this Fix it for users.
Stay Smart Online’s advice about keeping your software up to date.
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