High
Adobe Flash Player could allow a remote malicious user to execute arbitrary code on the system, caused by a use-after-free error. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to execute arbitrary code on the system or cause the application to crash.
Arbitrary Code Execution
Adobe
Adobe Flash Player
Refer to Adobe flash player’s advisory for the complete list of affected products and upgraded patches.
https://helpx.adobe.com/security/products/flash-player/apsb20-30.html