Find out if you have Flash and if so what version by visiting this link. Adobe Systems this week rushed out an emergency patch to plug a security hole in its widely-installed Flash Player software, warning that the vulnerability is already being exploited in active attacks.Īdobe said a “critical” bug exists in all versions of Flash including Flash versions 21.0.0.197 and lower (older) across a broad range of systems, including Windows, Mac, Linux and Chrome OS.