Adobe Flash Player versions 32.0.0.156 and earlier, 32.0.0.156 and earlier, and 32.0.0.156 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution.
https://security.gentoo.org/glsa/201908-21
https://helpx.adobe.com/security/products/flash-player/apsb19-19.html