CVE-2017-11292: Adobe Flash Player Type Confusion Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2022-03-03. EPSS: 11.9% chance of exploitation in the next 30 days.

Adobe Flash Player version 27.0.0.159 and earlier has a flawed bytecode verification procedure, which allows for an untrusted value to be used in the calculation of an array index. This can lead to type confusion, and successful exploitation could lead to arbitrary code execution.

Affected products

• Adobe Flash Player: up to and including 27.0.0.130; up to and including 27.0.0.159
• Adobe Flash Player Desktop Runtime: up to and including 27.0.0.159
• Red Hat Enterprise Linux Desktop: version 6.0 only
• Red Hat Enterprise Linux Server: version 6.0 only
• Red Hat Enterprise Linux Workstation: version 6.0 only

Published 2017-10-22. Last modified 2026-06-17.