A security update is available for Apple's popular media player - QuickTime. The company said that the QuickTime 7.7.2 update would address 17 security vulnerabilities in QuickTime for Windows 7, Vista and Windows XP SP2 or later. Among the issues addressed in the update are flaws which could allow an attacker to remotely execute code on a target system. The vulnerable QuickTime components are tools which handle movie files, MP4 content, and web pages. Users can obtain the security update through Apple's Software Update tool or by downloading the latest version of QuickTime.