Earlier this week, Adobe released an update to its Flash Player software to overcome a security flaw. Apple confirmed today that it has updated its plugin blacklist for OS X to avoid security issues. This plugin would stop the system from using older versions of Flash Player which are older than 220.127.116.11 for current systems and 18.104.22.168 for older systems.
Adobe Flash Player updates are available that address a recently-identified Adobe Flash Player web plug-in vulnerability.
If the version of Adobe Flash plug-in you are using is out of date, you may see the message, “Blocked plug-in”, “Flash Security Alert” or “Flash out-of-date” when attempting to view Flash content in Safari.
According to Adobe, the security flaw could allow malicious users to take control of the computer thats running the affected versions of Flash Player. The block only affects Safari and not third-party browsers. Flash Player in other browsers would require to be updated manually.
(Via 9To5 Mac)