Newly discovered flaws in both Outlook and Internet Explorer (IE) were uncovered and announced over the weekend.

The security holes are considered to be especially “high risk” in part because they require little to no user interaction in order for a third-party to exploit them. The security flaws exist in the default installations of Windows XP, Windows 2000, Windows NT 4.0, and Windows Server 2003.

A Windows user’s computer can become infected through these holes by doing nothing more than web surfing to a site which is infected.

“If a user is tricked (into going) to a site carrying malicious code, they can become infected by just surfing across a banner ad,” according to Ben Nagy, a senior security engineer with eEye Security, which discovered and announced the flaws.

While Microsoft has been made aware of the issue, a Microsoft spokesperson stated that…

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