On Saturday, Microsoft published a security advisory warning users of Internet Explorer 6, 7, and 8 that they could be vulnerable to remote code execution hacks. The company said that users of IE 9 and 10 were not susceptible to similar attacks and recommended that anyone using the older browsers upgrade. Still, customers who still run Windows XP can not upgrade to IE 9 and 10 without upgrading their OS.
Microsoft's confirmation comes after reports from several security groups that the attack sprung from the Council of Foreign Relations website, creating a “watering hole attack” that left people who visited the site through older versions of the browser open to further attack.
The company has released a workaround for the problem, and said that it is working on a patch for IE 6, 7, and 8, but did not give a time period as to when those patches would be released. The Council of Foreign Relations told The Washington Free Beacon that it was investigating the situation and working to prevent security breaches like this down the line.