Microsoft to issue 12 security patches
Microsoft plans to issue a dozen security alerts on Tuesday - some carrying the highest risk rating of critical - as part of a monthly security update to fix flaws in its software.
Nine of the patches relate to its Windows operating system, two address problems in its Microsoft Office productivity software and the other is for the company's Exchange email server software, Microsoft said on its website.
Microsoft, which makes the Windows operating system that runs on 90 percent of the world's computers, will issue patches to fix the problems as part of its monthly security bulletin. The world's biggest software maker defines a flaw as "critical" when the vulnerability could allow a damaging Internet worm to replicate without the user doing anything to the machine.
