Microsoft Corp. on Tuesday issued five “critical” security patches to fix flaws in its software that the company warned could allow attackers to take control of a user’s computer.
Microsoft, whose Windows operating system runs on 90 percent of the world’s computers, issued the patches 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.
The company said four of the “critical” patches fixed holes in its Windows operating system. Microsoft also issued another security update for Windows it rated at the lower threat level of “important.”
The other “critical” patch targeted Microsoft’s XML Core Services package.
The company has been working for more than three years to improve the security and reliability of its software as more and more malicious software target weaknesses in Windows and other Microsoft software.
The latest patches can be downloaded at www.microsoft.com/security.
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