A recent Microsoft security patch for Internet Explorer can lock users out of certain Web sites and Microsoft's own MSN e-mail service, Microsoft said late Wednesday.
The issue affects the cumulative patch for IE versions 5.01, 5.5, and 6.0 released on February 5 and rated "critical" by Microsoft.
The software maker released a software fix to correct the bug, according to the revised MS03-004 security bulletin.
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