Nessus is a proprietary vulnerability scanner developed by Tenable, Inc.

It provides a variety of vulnerability scoring systems like CVSS v4, EPSS and Tenable’s VPR to help you implement effective vulnerability prioritization for remediation efforts.

Nessus is trusted by tens of thousands of organizations, with 2 million downloads worldwide.

From the beginning, we've worked hand-in-hand with the security community. We continuously optimize Nessus based on community feedback to make it the most accurate and comprehensive vulnerability assessment solution in the market. Twenty-five years later and we're still laser focused on community collaboration and product innovation to provide the most accurate and complete vulnerability data — so you don't miss critical issues which could put your organization at risk.

Today, Nessus is trusted by tens of thousands of organizations worldwide as one of the most widely deployed security technologies on the planet — and the gold standard for vulnerability assessment.

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