What are the key differences between OpenVAS and Nessus?

Compare OpenVAS and Nessus side by side on Lunoo to see detailed feature differences, AI scores, and expert analysis.

How are OpenVAS and Nessus scored?

OpenVAS has an AI score of 7.82/10 and Nessus has an AI score of 8.67/10. Scores are based on category fit, feature coverage, pricing signals, public reception, and recency.

OpenVAS vs Nessus 2026 - Compared

OpenVAS

Nessus

WINNER Nessus

Nessus edges ahead with a score of 8.7/10 compared to 7.8/10 for OpenVAS. While both are highly rated in their respectiv...

OpenVAS

7.82 Good

Vulnerability Scanner Get OpenVAS open_in_new

emoji_events WINNER

Nessus

8.67 Great

Cybersecurity Get Nessus open_in_new

psychology AI Verdict

Nessus edges ahead with a score of 8.7/10 compared to 7.8/10 for OpenVAS. While both are highly rated in their respective fields, Nessus demonstrates a slight advantage in our AI ranking criteria. A detailed AI-powered analysis is being prepared for this comparison.

emoji_events Winner: Nessus

verified Confidence: Low

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description Overview

OpenVAS

OpenVAS is an open-source vulnerability scanner that performs comprehensive network security assessments by identifying weaknesses in systems and applications through automated scans and reporting of findings.

Nessus

Developed by Tenable, Nessus scans systems and networks for known security weaknesses. Its checks can identify outdated software and insecure configuration settings, giving administrators evidence to guide remediation. Web servers and related services can form part of an assessment, but its scope extends beyond web pages to the hosts and network services supporting an organization. Vulnerability a...