CVE-2015-5563: Use-after-free vulnerability in Adobe Flash Player before 18.0.0.232 on Windows and OS X and before 11.2.20...

Security readout for executives and security teams

This is an old Adobe Flash and AIR memory-safety flaw that could let an attacker run code on a user’s system. The highest concern is legacy software still carrying vulnerable Flash Player or AIR versions. The bundle does not show active exploitation, but code execution risk makes remaining exposure important to remove. Exposure is most likely on legacy desktops, browser plugin inventories, AIR runtimes, or Linux packages that were not updated after Adobe APSB15-19 and related distribution advisories. Modern environments should still validate old images, kiosks, embedded browsers, and application packaging. Prioritize as a legacy exposure cleanup item with high impact if found. It should not outrank actively exploited KEV issues, but any confirmed vulnerable Flash or AIR installation should be updated or removed promptly. Mitigation focus: Apply Adobe APSB15-19 updates for Flash Player and AIR where still present.; Update Linux distribution packages using Gentoo, openSUSE, or Red Hat advisories where applicable.; Remove obsolete Flash Player or AIR components when business use no longer exists..

Prepared

Jun 13, 2026, 22:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.