Winamp users, it's time to upgrade to the latest version of the popular audio and video player.
As originally reported in Winamp's release announcement, version 5.63 fixes four critical security vulnerabilities. Successful exploitation of the vulnerabilities allows execution of arbitrary code. For the exploitation to take place, a user running an outdated version of Winamp, would have to open a specially crafted . AVI video file.
More details about the vulnerability can be found in this Secunia advisory.