Microsoft rated one vulnerability with the less severe "important" ranking, but experts say that the glitch allows remote hackers to execute malicious code on unpatched computers...

One of the four critical updates Microsoft released in its October Patch Tuesday lineup addresses a rare and potentially serious vulnerability in Active Directory...

Just two days after Mozilla issued a large patch that repaired 11 vulnerabilities in Firefox 3, researchers detected yet another vulnerability in the latest version, 3.0.2, that prevents users...

The Black Hat security conference has never been short on intrigue, and this year's event offered plenty. From security researcher Dan Kaminsky's blockbuster DNS vulnerability presentation, to...

Security researcher Dan Kaminsky reveals the details on the DNS vulnerability he discovered earlier this year, suggesting its potential impact is far more serious than just about anyone realize...

A giant vulnerability in the Internet's design is allowing criminals to silently redirect traffic to Web sites under their control. The problem is being fixed, but its extent remains unknown an...

It started out as a joke amongst security researchers---what if they could discover a vulnerability in Firefox 3.0 in a matter of minutes?...

It started out as a joke amongst security researchers---what if they could discover a vulnerability in Firefox 3.0 in a matter of minutes?...

Oracle is warning WebLogic Server customers of an as-yet unpatched vulnerability that paves the way for miscreants to perform a variety of attacks...

Oracle is scrambling to create an emergency patch for a severe vulnerability in the company's WebLogic server, as exploit code...