Adobe Flash Player before 18.0.0.375 and 19.x through 23.x before 23.0.0.162 on Windows and OS X and before 11.2.202.635 on Linux allows attackers to bypass intended access restrictions and obtain sensitive information via unspecified vectors, a different vulnerability than CVE-2016-4277 and CVE-2016-4278, aka a "local-with-filesystem Flash sandbox bypass" issue.
https://github.com/Live-Hack-CVE/CVE-2016-4277
https://github.com/Live-Hack-CVE/CVE-2016-4278
https://helpx.adobe.com/security/products/flash-player/apsb16-29.html
https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-5271
https://blog.bjornweb.nl/2017/02/flash-bypassing-local-sandbox-data-exfiltration-credentials-leak/