http://www.winnetmag.com/Windows/Articles/ArticleID/43739/pg/2/2.html

[quote]A newly discovered flaw in Microsoft Internet Explorer (IE) affects various IE releases, including the version in Windows XP Service Pack 2 (SP2), leaving users of the incredibly buggy browser open to attack. The flaw, which security firm Secunia disclosed this weekend, affects IE 6, 5.5, and 5.01 and Windows XP SP2 and SP1.[/quote]