XP Service Pack Said to Fix Major Flaw

Security boards are buzzing with warnings of a serious hole, but Microsoft is simply urging users to upgrade.

Microsoft always urges users to update programs when it ships a Service Pack, but an easily exploited Windows XP flaw makes it especially important that users of the operating system download and install the newly released SP1 promptly, several security experts warn.

The Win XP flaw is described as a still little-known but critical vulnerability, and is described as “trivially easy” to exploit by some who have studied it. It could allow files on any PC running Windows XP to be deleted simply by clicking on a malicious URL, according to bug hunter’s reports.

An exploit could be distributed by e-mail as a URL the recipient is invited to click, or posted in a newsgroup or on a Web page.

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