Microsoft has warned users of a series of significant vulnerabilities in its Media Player software that could allow a hacker to take over a machine and run arbitrary code.
The flaws, described by the company as "critical", affect Media Player 6.4 and 7.1, as well as Media Player for Windows XP. They are found in the anti-piracy and storage features of the software.
The company is urging users to download a patch from its website "immediately".
The most severe flaw allows a hacker to take over a computer and run commands such as accessing a network or opening a file. Another critical flaw is in the way the software handles requests for media files that use Digital Rights Management (DRM), which could allow attackers to access the browser's cache. A third flaw relates to how and where the software stores playlists.
With the most severe flaw, an attack would send a victim a media file through email or get them to download it. From there the attacker could then introduce an executable into the browser cache, run it and gain access to the victim's computer.
Further details of the vulnerabilities and the patch can be found here.
Comcast's £29.7bn winning bid more than twice the £13.7bn Rupert Murdoch valued Sky at just eight years ago
A nuclear strike has been considered, but Bruce Willis is nowhere in sight
Spray-on antenna could enable seamless integration of antennas with everyday objects
Parker Solar Probe, TESS and GOLD missions will deliver exciting data, claims NASA