Netskope Threat Labs

FILE-FLASH Adobe Flash Player MovieClip object use-after-free attempt

IPS-SWG

1 SID: 39316

First seen
June 2022
Last seen
September 2026

Detects Flash content exploiting CVE-2015-8449 and CVE-2016-4146, use-after-free vulnerabilities in Flash Player's movie clip handling that can allow code execution. The rule matches the load event sequencing that public exploits use to free clip objects while they remain in use.