Microsoft has released Microsoft security advisory 2458511 to alert users of a vulnerability affecting all supported versions of Internet Explorer. This vulnerability may allow an attacker to execute arbitrary code.
Update: Microsoft has released two Fix it tools in Microsoft Support article 2458511 to help mitigate the risks until a security update is available.
US-CERT encourages users and administrators to review Microsoft Security Advisory 2458511 and consider implementing the suggested workarounds or using the Microsoft Fix it tools provided in Microsoft Support article 2458511 to help mitigate the risks until a fix is available from the vendor.
US-CERT will provide additional information as it becomes available.
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