CVE-2015-5551: 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

CVE-2015-5551 is a memory-safety flaw in legacy Adobe Flash Player and Adobe AIR that could let an attacker run code on a vulnerable system. The bundle identifies fixed version thresholds, but does not provide CVSS details, exploitation evidence, or attack vector specifics. Exposure is most likely in legacy systems retaining Adobe Flash Player, Adobe AIR, or vendor-packaged Flash components below the fixed versions. Modern exposure should be limited unless old browser plugins, embedded runtimes, or archived Linux packages remain installed. Treat this as high priority for legacy environments. The technology is obsolete and the flaw allows code execution, but urgency depends on whether vulnerable Flash or AIR components still exist in the estate. Mitigation focus: Upgrade Flash Player and AIR components to the fixed versions or later.; Remove Flash Player or AIR where no business requirement remains.; Apply relevant distribution advisories from Gentoo, openSUSE, or Red Hat if applicable..

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.