Adobe Acrobat and Reader versions 2019.010.20100 and earlier, 2019.010.20099 and earlier, 2017.011.30140 and earlier version, 2017.011.30138 and earlier version, 2015.006.30495 and earlier, and 2015.006.30493 and earlier have an out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.
https://www.zerodayinitiative.com/advisories/ZDI-19-495/
https://helpx.adobe.com/security/products/acrobat/apsb19-18.html