Design/Logic Flaw

Use-after-free vulnerability in the instanceof function in Adobe Flash Player before 18.0.0.329 and 19.x and 20.x before 20.0.0.306 on Windows and OS X and before 11.2.202.569 on Linux, Adobe AIR before 20.0.0.260, Adobe AIR SDK before 20.0.0.260, and Adobe AIR SDK & Compiler before 20.0.0.260 allows attackers to execute arbitrary code by leveraging improper reference handling, a different vulnerability than CVE-2016-0973, CVE-2016-0974, CVE-2016-0982, CVE-2016-0983, and CVE-2016-0984.