Qualys Research & Development

Comprehensive vulnerability detection today requires tracking the latest threats as they emerge and evolve in real-time. The security experts in the dedicated Qualys Vulnerability Research Team perform continuous vulnerability research, ensuring that Qualys incorporates the latest security intelligence for prompt use by customers.

Security Alerts

New detections for critical vulnerabilities added to the Qualys KnowledgeBase.

View Security Alerts

Security Advisories

Vulnerabilities discovered by the Qualys Vulnerability and Malware Research Labs (VMRL).

View Security Advisories


Vulnerabilities with exploits for obsolete software discovered by the Qualys Vulnerability Research Team.

View Exploits Against Obsolete Software

Top 10 Vulnerabilities

The Top 10 Vulnerabilities help security administrators prioritize their remediation efforts by focusing first on the most dangerous threats.

Top 10 Vulnerabilities

Laws of Vulnerabilities

Wolfgang Kandek, CTO of Qualys, has defined the Laws of Vulnerabilities derived from the industry's largest real-world vulnerability dataset: more than 680 million vulnerabilities generated by 80 million scans during 2008.

View The Laws of Vulnerabilities


The Qualys Vulnerability Research Team creates an average of 25 vulnerability signature updates per week, making the Qualys KnowledgeBase the largest and most up-to-date vulnerability signature database.

View Qualys KnowledgeBase

Open Source Projects

Projects released by Qualys under open source licenses and contributions made to third-party open source projects.

View Open Source Projects


In-depth analysis of the latest vulnerabilities, including remediation instructions.

View SANS @Risk Newsletter
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