Netskope Threat Labs

CVE-2015-5119

ATP Sandbox Adv. HeuristicsNetskope IPS

This detection identifies exploitation attempts targeting CVE-2015-5119, which has a CRITICAL severity rating. Use-after-free vulnerability in the ByteArray class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.296 and 14.x through 18.0.0.194 on Windows and OS X and 11.x through 11.2.202.468 on Linux allows remote cyberattackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that overrides a valueOf function, as exploited in the wild in July 2015.

First seen
March 2022
Last seen
October 2026
Alert Name
ByteCode-SWF.Exploit.CVE-2015-5119