Adobe Acrobat and Reader versions 2019.010.20064 and earlier, 2019.010.20064 and earlier, 2017.011.30110 and earlier version, and 2015.006.30461 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution.
https://helpx.adobe.com/security/products/acrobat/apsb19-02.html