Tenable Nessus

It scans networks, operating systems, devices and applications to identify software flaws, missing patches and misconfigurations. Scans produce risk scores using CVSS v4, EPSS and Tenable‑specific VPR, and generate reports that highlight the most critical issues while providing remediation guidance.

The tool is aimed at security practitioners and IT teams that need to assess and reduce exposure across evolving attack surfaces. It supports configurable reporting, compliance checks and can be used on‑premises or in the cloud, with optional advanced support and training.

Distinctive aspects include a focus on low false‑positive rates, coverage of a broad set of vulnerabilities, and built‑in scoring that prioritises the most dangerous findings. The product is offered in Professional and Expert editions, each providing unlimited vulnerability assessments and web‑application scanning capabilities.