CVE-2016-7855: Adobe Flash Player Use-After-Free Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2022-03-03. EPSS: 25.2% chance of exploitation in the next 30 days.

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.

Affected products

• Adobe Flash Player: up to and including 23.0.0.185; up to and including 11.2.202.637
• Red Hat Enterprise Linux Desktop: version 5.0 only; version 6.0 only
• Red Hat Enterprise Linux Server: version 5.0 only; version 6.0 only
• Red Hat Enterprise Linux Workstation: version 5.0 only; version 6.0 only

Published 2016-11-01. Last modified 2026-06-17.