Adobe Flash Player 21.0.0.242 are earlier versions for Windows, Macintosh, Linux, and Chrome OS are currently being exploited and there is no patch. Therefore we have marked them as ‘Zero Day’ as well as ‘Active Attacks’ in ThreatPROTECT. The exploit uses CVE-2016-4171 in targeted attacks. Adobe is expected to address this vulnerability on June 16.
We have added RTIs to QID 370060.