Adobe Acrobat and Reader versions 2019.021.20061 and earlier, 2017.011.30156 and earlier, 2017.011.30156 and earlier, and 2015.006.30508 and earlier have an out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure .
https://helpx.adobe.com/security/products/acrobat/apsb20-05.html