As if we needed another reason to beg to our clients to stop using IE.
Microsoft is aware of limited, targeted attacks that attempt to
exploit a vulnerability in Internet Explorer 6, Internet Explorer 7,
Internet Explorer 8, Internet Explorer 9, Internet Explorer 10, and
Internet Explorer 11.
The vulnerability is a remote code execution vulnerability.
The vulnerability exists in the way that Internet Explorer accesses an
object in memory that has been deleted or has not been properly
allocated. The vulnerability may corrupt memory in a way that could
allow an attacker to execute arbitrary code in the context of the
current user within Internet Explorer. An attacker could host a
specially crafted website that is designed to exploit this vulnerability
through Internet Explorer and then convince a user to view the website.
https://technet.microsoft.com/en-us/library/security/2963983.aspx