Intel has issued patches for three vulnerabilities for its wireless hardware and software. The company said that the vulnerabilities were in drivers from Microsoft.

Two problems affect certain versions of its Pro/Wireless Network Connection Hardware, part of its Centrino mobile platform, these flaws could allow an attacker near a WiFi station to run unauthorised code on a victim's machine or gain kernel-level privileges.

A third vulnerability affects Intel's Proset/Wireless Software. It could lead to a hacker obtaining authentication credentials, Intel said.

So far, no attempts have been made to exploit the vulnerabilities.

Graham Cluley, senior technology consultant for security vendor Sophos, said a hacker could use the driver problems to create a worm that replicates itself by passing to other computers.

"It's a very big target for people to do these sorts of things," Cluley said.

Users can verify verify what version of the hardware they are running or download the new drivers.

Intel warned, however, that the updated drivers are generic ones and that OEMs may have changed some of the software. The generic drivers have not been verified by manufacturers for compatibility, Intel said.

For the other vulnerability, Intel recommended saving the profile of the Proset/Wireless Software with the "export" feature before making changes.

The SANS Institute, a security training organisation, said in an advisory it does not believe updated drivers would be delivered through Microsoft's automated update system. Microsoft officials could not be immediately reached.

SANS also advised that users should check with system vendors to see if custom drivers are going to be released. The patches will have to be applied manually unless manufacturers provide an automated update tool, SANS said.