Vulnerability Management Tools Compared (2026)

Tenable Nessus

Vulnerability Management

Freemium / Paid

Free Essentials (16 IPs), Professional $4,790/yr, Expert $6,790/yr (per… scanner, 2026 list pricing)

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Qualys VMDR

Vulnerability Management

Paid

~$199-$250/asset/yr Community Edition free (16 internal + 3 external + 1 web app)

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Rapid7 InsightVM

Vulnerability Management

Paid

From ~$1.93/asset/mo (~$23/asset/yr) at 500-asset minimum ~$11K-$15K/yr for 500 assets

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OpenVAS (Greenbone)

Vulnerability Management

Free / OSS

Free Greenbone Community Edition Greenbone Enterprise appliances and Enterprise Feed are paid subscriptions

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Nuclei

Vulnerability Management

Free / OSS

Free (MIT license) ProjectDiscovery offers a paid cloud platform for teams wanting managed scanning and collaboration

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Comparing →

Tenable Nessus

Vulnerability Management

Qualys VMDR

Vulnerability Management

Rapid7 InsightVM

Vulnerability Management

OpenVAS (Greenbone)

Vulnerability Management

Nuclei

Vulnerability Management

$ Pricing & plans

5 dimensions

Pricing model

Essentials (free, 16 IPs), Essentials Plus (paid annual, 20 IPs), Professional…

($4,790/yr, unlimited IPs per scanner), Expert ($6,790/yr, unlimited IPs + web app scanning + EASM + IaC). Prices reflect 2026 increase. Multi-year licenses reduce annualized cost ~10-15%.

VMDR ~$199-$250/asset/yr

100 assets ≈ $19,900/yr; some practitioners report ~$40/asset for VMDR module alone at enterprise scale; median enterprise contract ~$12K/yr per Vendr data. Patch Management adds ~15-25%; WAS $1,995/yr for 25 web apps.

From ~$1.93/asset/mo (~$23.18/asset/yr) at 500-asset minimum

500 assets ≈ $11,580/yr; volume-based discounts at 1,000+, 5,000+ assets; enterprise deployments $30K-$150K+/yr

Greenbone Community Edition (GVM stack with OpenVAS scanner) free under GPL-2.0…

with Community Feed; Greenbone Enterprise appliances (with Enterprise Feed) are commercial subscriptions ranging from a few euros per month for OPENVAS BASIC to enterprise-tier pricing for large appliances

Nuclei CLI and all 12,000+ community templates are free under MIT license

ProjectDiscovery Cloud Platform is a separate paid offering for managed scanning, team collaboration, and reporting features

Pricing tier

Freemium / Paid

Paid

Free / OSS

Free tier / trial

Free tier

Nessus Essentials free up to 16 IPs (or 5 IPs on 30-day trial of newer Essentials); 7-day trial of paid tiers

Free tier

Qualys Community Edition free (16 internal + 3 external assets + 1 web app); 30-day VMDR trial; 45-day Patch Management trial

Trial only

30-day free trial of InsightVM via Rapid7 website; live demo and PoC engagements available

Free tier

Community Edition permanently free; 14-day trial of OPENVAS BASIC; Greenbone Enterprise TRIAL VM available

Free tier

Software permanently free; ProjectDiscovery Cloud Platform offers free tier with paid tiers for teams

Volume discounts

Multi-scanner deployments and multi-year terms reduce per-scanner cost

education program offers significant discounts for verified students/educators

Tiered breaks at 1,000, 5,000, 10,000+ assets

multi-year commitments reduce per-asset cost; bundling VMDR with other Qualys modules increases discount leverage

Per-asset pricing decreases with volume

bundling InsightVM with InsightIDR or InsightAppSec yields 10-20% bundle savings; multi-year terms reduce annual cost

Not applicable for free Community Edition

Greenbone Enterprise pricing negotiated based on appliance size and feed subscription

Not applicable for CLI (free)

ProjectDiscovery Cloud pricing scales with team size and scan volume

Hidden costs

Tenable annually increases prices each March

centralized cloud console requires the separate Tenable Vulnerability Management subscription; advanced features (EASM, IaC, web app scanning) gated to Expert tier

Virtual scanner appliances ($8K-$9K/yr each), Patch Management module (+15-25%…

over VMDR), Web Application Scanning, professional services for implementation, ServiceNow/CMDB integration may add cost

Implementation and training, professional services, Managed VM service if…

elected, additional Rapid7 modules (InsightAppSec for web app scanning sold separately), log ingestion for InsightIDR if bundled

Operational infrastructure (Linux server, PostgreSQL, Redis, sufficient storage…

for scan history), specialized labor for tuning and false-positive triage, training time; Greenbone Enterprise Feed subscription if requiring expanded VT coverage

Operational time for template tuning and false-positive triage, CI/CD…

integration engineering, false-positive review (template library is community-contributed); custom template development for proprietary applications

↗ Deployment & integrations

3 dimensions

Deployment

Self-hosted scanner

one license = one scanner; agents available for distributed scanning; Tenable Vulnerability Management (separate product) provides cloud-hosted centralized management

Cloud SaaS via Qualys Cloud Platform

virtual scanner appliances (~$8K-$9K/yr each) or physical for internal/segmented networks; agent-based scanning via Qualys Cloud Agent

Hybrid model

cloud-based Insight Platform + on-premises Security Console (control center) + distributed Scan Engines + Insight Agent for endpoints

Self-hosted Greenbone Community Edition (Linux packages, Docker compose)

Greenbone Enterprise appliances as hardware or virtual (VMware, Hyper-V, KVM, AWS/Azure cloud)

Single Go binary, runs on Linux/macOS/Windows

Docker available; CI/CD integration via GitHub Actions, GitLab CI; ProjectDiscovery Cloud for managed deployment

Typical deployment time

Hours for Nessus Essentials/Professional install

days to weeks for production scanning programs with credentialed scanning, tuning, and reporting

Days for cloud-only assets

weeks for distributed enterprises requiring scanner appliances in multiple network zones; implementation services often $5K-$50K

Days for cloud-only scope

weeks for distributed enterprises with multiple scan engines and agent rollouts; complexity scales with environment size

Hours for Docker-based Community Edition PoC

days for production with credentialed scanning, scheduling, and reporting tuning; initial feed sync 30-60 minutes

Minutes — single binary install via Go, package manager, or direct download

immediate scanning capability with default templates

Key integrations

Tenable Vulnerability Management, ServiceNow, Splunk, IBM QRadar, Microsoft…

Sentinel, Jira, Slack, AWS, Azure, GCP; Nessus API for custom integrations

ServiceNow, Splunk, Microsoft Sentinel, IBM QRadar, Jira, Slack, AWS, Azure,…

GCP, Kubernetes, Active Directory; pre-approved scanner for AWS EC2

ServiceNow, Jira, Splunk, Microsoft SCCM, AWS, Azure, GCP, Microsoft Sentinel,…

Slack, PagerDuty, Active Directory; open API for custom integrations; Rapid7 Extensions Library

GMP (Greenbone Management Protocol) and OSP (Open Scanner Protocol) APIs

integration via gvm-tools and Python libraries; SIEM forwarding via syslog/CEF; CI/CD via APIs

GitHub Actions, GitLab CI, Jenkins

integrates with other ProjectDiscovery tools (Subfinder, HTTPx, Naabu, Katana); JSON/SARIF output for security tooling; Slack, Discord, webhook notifications

🔍 Vulnerability Management-specific evaluation

7 dimensions

Scanner type

Network and host-based vulnerability scanner with dynamically compiled plugin engine

Expert tier adds web app scanning, external attack surface discovery, and IaC scanning

Cloud-based unified platform

network scanner appliances, cloud agent for endpoints, container/Kubernetes security, web application scanning (WAS module), cloud security posture management

Network and host-based scanner with Security Console + Scan Engines + Insight Agent

web app scanning via separately licensed InsightAppSec

Network and host-based vulnerability scanner

uses NASL (Nessus Attack Scripting Language) for vulnerability tests plus Notus Scanner for efficient package-based detection

Template-based vulnerability scanner

YAML templates define detection rules; supports HTTP, DNS, TCP, SSL, WebSocket, headless browser, code, file protocols; passive scanning of captured HTTP responses also supported

Vulnerability prioritization

CVSS v4, EPSS (Exploit Prediction Scoring System), Tenable Vulnerability…

Priority Rating (VPR); 450+ pre-configured scan templates; Live Results feature for offline assessment with every plugin update

Qualys TruRisk AI-powered prioritization correlating threat intelligence, asset…

criticality, exploit data; CVSS v3, real-time threat feeds; risk-based scoring

Active Risk Score (1-1000 dynamic scale) incorporating CVSS, threat context,…

malware exposure, exploit likelihood; Real Risk Score; Live Dashboards for trending and progress tracking

CVSS-based severity scoring

CVE database integration; daily-updated Vulnerability Tests (VTs) covering 100,000+ in Enterprise Feed; Community Feed slightly smaller but extensive

Templates carry severity classification (info/low/medium/high/critical) and CVSS metadata

CVE and CWE tagging; tag-based selection for targeted scanning (e.g., -tags cve,critical)

Asset coverage

Servers, workstations, network devices, databases, cloud infrastructure, web…

applications (Expert); IP-based licensing with unlimited IPs per scanner license on paid tiers

On-premises servers, endpoints, network devices, cloud workloads…

(AWS/Azure/GCP), containers, mobile, OT, IoT; agent-based and agentless approaches

Servers, endpoints, network devices, cloud workloads (AWS/Azure/GCP),…

containers, virtual environments; agentless and agent-based; Project Sonar for external attack surface awareness

Servers, workstations, network devices, web applications, databases

supports IPv4/IPv6, authenticated and unauthenticated scanning

Web applications, APIs, network services, cloud configurations, DNS

targets defined as URLs, hostnames, IP ranges, or files of targets

Authenticated scanning

SSH, SMB, WMI, SNMP, database credentials, cloud API keys

agent-based scanning available for endpoints that can't be reached via network scan

SSH, SMB, WMI, SNMP, database credentials

Qualys Cloud Agent for continuous authenticated scanning without credential management overhead

SSH, SMB, WMI, SNMP, database credentials

Insight Agent for credential-less continuous monitoring on endpoints

SSH, SMB, ESXi, SNMP, database credentials, Kerberos

credential-based local security checks (LSCs) for accurate detection of installed software vulnerabilities

Custom headers, cookies, and authentication parameters in templates

OAuth/JWT/Basic auth supported via template variables; less mature than commercial scanners for complex authenticated app scanning

Remediation workflows

Findings exported to PDF/HTML/CSV

ServiceNow, Jira ticketing via API or Tenable cloud integrations; remediation tracking via Tenable Vulnerability Management

Integrated Patch Management module deploys patches from same agent

automated workflows; ServiceNow/Jira ticketing integrations; remediation tracking dashboards

Remediation Projects for assigning fix tickets to IT teams with SLA tracking

native ServiceNow/Jira integration; integrated patch management via Microsoft SCCM and other tools

Multi-format reports (PDF, XML, CSV, HTML)

manual integration with ticketing systems via API or report export; delta reporting for tracking remediation progress

JSON/SARIF/Markdown output

integration into ticketing via custom scripts or ProjectDiscovery Cloud Platform; CI/CD pipelines can fail builds based on findings severity

Compliance frameworks

PCI DSS, HIPAA, NIST 800-53, NIST CSF, CIS Benchmarks, ISO 27001, FISMA,…

FedRAMP, SOX, GLBA, GDPR; pre-built audit policies

PCI DSS, HIPAA, NIST 800-53, NIST CSF, CIS Benchmarks, ISO 27001, FedRAMP, SOX, GDPR

Policy Compliance module for automated framework assessment

PCI DSS, HIPAA, NIST CSF, NIST 800-53, CIS Benchmarks, ISO 27001, SOX, GDPR

policy compliance assessments and reporting

PCI DSS, HIPAA, ISO 27001, NIST CSF, BSI IT-Grundschutz (German), GDPR-aligned operation

compliance-focused scan configurations included

Not focused on compliance frameworks

primarily a detection tool. Compliance reporting typically built externally from Nuclei findings.

Pricing model

Per-scanner annual license with unlimited IPs (Professional/Expert)

fixed per-scanner cost regardless of organization size

Per-asset annual subscription

modular pricing where each Qualys module (VMDR, Patch Management, WAS, Container Security) is priced separately based on assets/applications

Per-asset annual subscription with 500-asset minimum

no per-scanner fees (unlimited scan engines included); volume discounts at higher tiers

Free Community Edition (no licensing cost) or Greenbone Enterprise…

per-appliance subscription with Enterprise Feed

Free open source under MIT license

ProjectDiscovery Cloud Platform separately priced for managed/team use

✓ Compliance & certifications

1 dimension

Compliance certifications

Software supports compliance reporting for PCI DSS, HIPAA, NIST 800-53, CIS…

Benchmarks, ISO 27001, FISMA, FedRAMP, SOX, GLBA, GDPR; Tenable cloud products carry SOC 2, ISO 27001, FedRAMP Moderate

FedRAMP Moderate, SOC 2 Type II, ISO 27001, supports PCI DSS, HIPAA, NIST CSF,…

CIS Benchmarks, GDPR compliance reporting

SOC 2 Type II, ISO 27001, FedRAMP, PCI DSS

supports PCI DSS, HIPAA, NIST 800-53, CIS Benchmarks compliance reporting

Software runs in user's environment (no cloud data transfer) supporting GDPR compliance

supports PCI DSS, HIPAA, ISO 27001, NIST compliance scanning; Greenbone is German-based, aligned with EU data protection requirements

Software has no specific certifications

users deploy in their own compliant environments. ProjectDiscovery Cloud Platform certifications apply for managed cloud users.

◧ Positioning

3 dimensions

Target deployment

Security professionals, consultants, SMBs, mid-market wanting industry-standard…

vulnerability scanning

Mid-market to enterprise wanting unified cloud-based vulnerability + asset…

management + patch management

Mid-market to enterprise wanting modern UI, Active Risk Score, and integrated…

remediation projects

Budget-conscious teams, technical security practitioners, compliance scanning…

on a budget, GDPR-sensitive deployments, MSSPs

DevSecOps, bug bounty hunters, penetration testers, security teams wanting fast…

template-driven scanning of web apps and infrastructure

Strengths cited

Widely deployed vulnerability scanner with 2 million+ downloads, broad plugin…

library, mature scanning engine, multiple scoring systems (CVSS v4, EPSS, Tenable VPR), well-recognized for compliance reporting

Unified cloud platform combining vulnerability management, asset inventory,…

patch management, and compliance in one console; strong continuous asset discovery; TruRisk AI-prioritization; broad integration ecosystem

Live dashboards with Active Risk Score (1-1000 dynamic scale), Insight Agent…

for continuous monitoring, integrated Remediation Projects workflow, no per-scanner fees (unlimited scan engines), unified Rapid7 platform if pairing with InsightIDR

Free open source under GPL-2.0, 100,000+ vulnerability tests in Enterprise Feed…

(Community Feed also extensive), GDPR-compliant in-environment operation, daily updated feed, 15+ years of development by Greenbone, broadly used by penetration testers

Fast template-based scanning, 12,000+ community-curated YAML templates, single…

Go binary (no dependencies), broad protocol support (HTTP/DNS/TCP/SSL/WebSocket/headless), highly extensible with custom YAML templates, free under MIT license, very active community

Where it fits less well

Per-scanner licensing model

centralized cloud management requires the separately-licensed Tenable Vulnerability Management product; modern interactive dashboards are stronger in Tenable's cloud tier than in Nessus Professional

Per-asset pricing scales with environment size and can be costly for larger deployments

advanced modules (Patch Management, WAS) are priced separately; smaller deployments may find more value in alternatives

500-asset minimum commitment may not fit small deployments

initial setup and asset tagging involves planning; pricing often reported as competitive with Tenable/Qualys but final figure depends on negotiation

Self-hosted production deployment requires Linux/security engineering capacity

modern dashboards and reporting are more polished in commercial Greenbone Enterprise appliances than in the free Community Edition; initial feed sync can take 30-60 minutes

Template-based design optimized for known vulnerability checks rather than…

crawling-based DAST; security updates important for projects using community templates (e.g., v3.8.0 in April 2026 patched template-related vulnerabilities — running against trusted templates and keeping current is important)

Head-to-head comparisons

4 pairs

Methodology Comparison data synthesized from publicly available vendor documentation, MITRE Engenuity ATT&CK Evaluations, AV-TEST results, Gartner Peer Insights, G2/Capterra/TrustRadius reviews, anonymized transaction data (Vendr, CostBench, CheckThat.ai), and publicly reported pricing as of May 2026. defend.network is independent and has no commercial relationship with the vendors compared.