Adobe Flash Player versions 24.0.0.221 and earlier have an exploitable use after free vulnerability in the ActionScript2 TextField object related to the variable property. Successful exploitation could lead to arbitrary code execution.
https://security.gentoo.org/glsa/201703-02
https://helpx.adobe.com/security/products/flash-player/apsb17-07.html
http://www.securitytracker.com/id/1037994