A new vulnerability in Internet Explorer is being used in targeted attacks online. The vulnerability was disclosed by researchers at FireEye, who observed attacks against Internet Explorer versions 9 though 11. Microsoft hasn’t said if they will release an out-of-cycle patch for this flaw, only that they’ll take the “appropriate action” once the investigation is completed. The group responsible for this exploit has had access to “a select number of browser-based 0-day exploits in the past,” FireEye researchers said.”]
Source: https://www.csoonline.com/article/2148466/microsoft-confirms-internet-explorer-zero-day.html