Microsoft Corp., whose Windows operating system and e-mail programs have been under siege from new computer 'worms' for at least 10 days, has released a patch for two critical vulnerabilities in its Web browser.
As a result of the Internet worms -- which are viruses that spread through a network -- hundreds of thousands of PCs worldwide, at the minimum, have been infected. Many have crashed and networks have slowed to a crawl.
The Internet Explorer vulnerabilities could enable an attacker to run unwanted software on a computer and even take control of it if a victim were to visit a malicious Web site, the company said on Thursday.
With one of the vulnerabilities, a computer user could be vulnerable by clicking on a Web address link in an e-mail, according to Microsoft.
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