It's been a rough few weeks for the Microsoft's Internet Explorer. First, Google revealed that Chinese hackers have used an undocumented security flaw in IE to access personal data of some of their employees. Microsoft did not immediately issue a fix, which prompted both the German and the French government to warn against using Microsoft's browser.
Now, when they've finally fixed that hole, a set of new serious security flaws has emerged.
The new flaws were found by Core Security Technologies; each of the vulnerabilities is not very serious by itself, but if an attacker manages to exploit several of them at once he/she could take control of the victim's computer.