CVE-2016-4117

Adobe Flash Player's end-of-life status left unpatched RCE vulnerabilities perpetually exploitable, exemplifying the catastrophic risk of shipping and maintaining obsolete software.

Adobe Flash Player reached end-of-life in December 2020 without further security patches, leaving all remaining installations perpetually vulnerable to unpatched exploits. DIB organizations must care because maintaining obsolete software creates a perpetual security liability that can be exploited for remote code execution, directly impacting compliance with NIST 800-171 requirements for patch management and vulnerability mitigation. Organizations should immediately remove all legacy software and enforce strict software inventory controls to avoid similar negligence.

Shame score — Shipping and maintaining a discontinued product with known, unpatched RCE vulnerabilities demonstrates severe negligence and a failure to manage software lifecycles responsibly.