Nessus

Name: Nessus
Brand: Nessus
Price: 2990 USD
Rating: 4.6 (380 reviews)

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Vulnerability assessment scanner

Vulnerability Scanning Security

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4.6(380 across the web)

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Reviews onG2Capterra

380 reviews tracked

The Bottom Line

Entry price

Paid plans only

Biggest pro

Industry standard scanner

Biggest con

Expensive

TL;DR - Nessus

Nessus is a vulnerability scanner for identifying security issues
It scans networks and systems for vulnerabilities, misconfigurations, and malware
Nessus Essentials free for 16 IPs, Pro at $3,990/year

Pricing: Paid only

Best for: Enterprises & pros

4.6/5 across review platforms

What is Nessus?

Editorial review

Nessus scans for vulnerabilities across networks and systems. The scanner security professionals have used for decades-vulnerability assessment that's proven. The scanning is comprehensive. The database is current. The trust is established. Security teams doing vulnerability assessment use Nessus for proven scanning.

Available on: Web

LCLouis CorneloupUpdated May 26, 2026 · how we evaluateSourcetenable.com ↗

Pros & Cons

Pros

Industry standard scanner
Good vulnerability detection
Comprehensive coverage
Good reporting
Active development

Cons

Expensive
Learning curve
Resource intensive
Per-asset pricing
Better alternatives exist

Ratings Across the Web

4.6(380 reviews)

Ratings aggregated from independent review platforms. Learn more

Key Features

Vulnerability scannerCompliance checksConfiguration auditMalware detectionReportsEnterprise

Pricing Plans

Free Trial

Pricing checked Jul 11, 2026

Essentials (Free)

Free

Up to 16 IP addresses
Same scanning engine
Plugin updates
Community support

Professional

$2,990/year

Unlimited assessments
Standard support
All vulnerability checks
Compliance auditing

Expert

$5,890/year

External attack surface scanning
Domain monitoring
IaC scanning
Cloud scanning

Calculate your cost View full pricing

How Nessus's pricing compares

At $249.17/mo, Nessus is the most premium of its 2 direct competitors.

Mosyle

$0.46

Burp Suite

$37.42

Nessus

$249.17

Entry paid plan, monthly. Pricing checked Jul 11, 2026.

Reviews

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4.6/5

Across 380 verified user reviews on G2, Capterra

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Best Nessus Alternatives

Top alternatives based on features, pricing, and user needs.

View full list →

VeeamFreemium

Unified data protection, security, and resilience for hybrid environments and AI workloads.

4.6

OtterizePaid

AI-native data security platform for cloud, SaaS, on-prem, and AI environments.

4.4

Burp SuitePaid

Web security testing toolkit for penetration testers

4.7

TeramindPaid

Turn workforce signals into predictive intelligence for insider threat detection and productivity optimization.

4.6

MosyleFreemium

The only Apple Unified Platform for comprehensive device management and security.

4.6

SecurityScorecardFreemium

Detect, prioritize, and remediate vendor risk across your entire supply chain at scale.

4.4

VaronisPaid

Automated data security, posture management, and threat prevention powered by AI.

4.6

CSPi NetworkPaid

Solving complex technology and security challenges with high-performance products and comprehensive IT services.

4.3

See all vulnerability scanning tools →

Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

All Nessus alternatives8+ tools ranked, pricing + verdict per pick Nessus vs VeeamHead-to-head: features, pricing, who wins Nessus vs OtterizeHead-to-head: features, pricing, who wins Nessus vs Burp SuiteHead-to-head: features, pricing, who wins

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Nessus FAQ

How does Nessus assist security teams with vulnerability assessment?

Nessus provides proven and comprehensive scanning capabilities that security professionals have used for decades to identify vulnerabilities across networks and systems. It offers good vulnerability detection and comprehensive coverage to help teams maintain security.

What kind of user benefits most from Nessus?

Nessus is best suited for security teams actively engaged in vulnerability assessment who require an industry-standard scanner with good reporting. Its established trust and active development make it a reliable choice for dedicated security professionals.

How does Nessus compare to Burp Suite for vulnerability scanning?

Nessus is a comprehensive vulnerability assessment scanner known for its broad network and system scanning capabilities. In contrast, Burp Suite focuses more on web application security testing, offering different strengths in the vulnerability detection landscape.

What are the primary limitations of using Nessus?

Nessus can be expensive and has a learning curve for new users. It is also resource-intensive and uses a per-asset pricing model, which might be a consideration for some organizations.

How is Nessus priced?

Nessus is a paid product and does not include a permanently free tier. Its pricing model is based on a per-asset structure.

Can Nessus provide detailed reports on identified vulnerabilities?

Yes, Nessus is known for its good reporting capabilities, which help security teams understand and address the vulnerabilities detected during scans. This feature supports effective remediation efforts.

Source: tenable.com

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