Qualys VMDR vs Greenbone OpenVAS -- Cloud Vulnerability Management Compared

Qualys VMDR vs Greenbone OpenVAS

Greenbone OpenVAS and Qualys VMDR are both open source vulnerability scanner solutions. Greenbone OpenVAS the most widely used open-source vulnerability scanner with 100,000+ network vulnerability tests, while Qualys VMDR cloud-native vulnerability management platform with integrated detection, prioritization, and patch management. The best choice depends on your organization's size, technical requirements, and budget.

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The Verdict

Choose Greenbone OpenVAS if completely free with no licensing costs is your priority and security teams wanting a free, open-source vulnerability scanner with no licensing costs and full customization control. Choose Qualys VMDR if fully cloud-native architecture with no on-prem infrastructure required matters most and organizations wanting an all-in-one cloud-based VM platform with integrated patching and asset inventory.

Used Qualys VMDR or Greenbone OpenVAS? Share your experience.

Feature-by-Feature Comparison

FeatureGreenbone OpenVASQualys VMDR
PricingCustom pricing based on asset count / Typically from $3,000/year for small environmentsFree (open source) / Greenbone Enterprise appliances from $5,000/year
Pricing ModelPer-asset (annual subscription)Open source with commercial appliance options
Open SourceNoYes
DeploymentCloudSelf-Hosted
Best ForOrganizations wanting an all-in-one cloud-based VM platform with integrated patching and asset inventorySecurity teams wanting a free, open-source vulnerability scanner with no licensing costs and full customization control
100,000+ network vulnerability tests ...Not availableSupported
Authenticated and unauthenticated sca...Not availableSupported
CVE, CPE, and CVSS-based vulnerabilit...Not availableSupported

When to Choose Each Tool

Choose Greenbone OpenVAS when:

  • +You value fully cloud-native architecture with no on-prem infrastructure required
  • +You value integrated patch management eliminates tool-switching for remediation
  • +You value truRisk scoring provides actionable risk-based prioritization
  • +You want to avoid scanning speed significantly slower than commercial alternatives
  • +You want to avoid web interface is functional but dated compared to Tenable or Qualys

Choose Qualys VMDR when:

  • +You value completely free with no licensing costs
  • +You value open-source transparency allows code audit and customization
  • +You value large community with active development and NVT updates
  • +You want to avoid pricing is opaque and can escalate at enterprise scale
  • +You want to avoid agent deployment required for authenticated internal scanning

Pros & Cons Comparison

Greenbone OpenVAS

Pros

  • +Completely free with no licensing costs
  • +Open-source transparency allows code audit and customization
  • +Large community with active development and NVT updates
  • +Self-hosted deployment gives full control over scan data
  • +Commercial Greenbone appliances available for enterprise support

Cons

  • Scanning speed significantly slower than commercial alternatives
  • Web interface is functional but dated compared to Tenable or Qualys
  • Requires significant Linux administration expertise to deploy and maintain
  • NVT library is smaller and updated less frequently than Nessus plugins
  • No native cloud scanning, container security, or OT/ICS support

Qualys VMDR

Pros

  • +Fully cloud-native architecture with no on-prem infrastructure required
  • +Integrated patch management eliminates tool-switching for remediation
  • +TruRisk scoring provides actionable risk-based prioritization
  • +Single agent covers vulnerability scanning, patching, and EDR
  • +Strong compliance and regulatory reporting capabilities

Cons

  • Pricing is opaque and can escalate at enterprise scale
  • Agent deployment required for authenticated internal scanning
  • User interface can feel dated compared to modern competitors
  • Complex licensing with multiple modules to purchase separately
  • Custom reporting requires significant configuration effort

Sources & References

  1. Greenbone OpenVAS — Official Website & Documentation[Vendor]
  2. Qualys VMDR — Official Website & Documentation[Vendor]
  3. Greenbone OpenVAS Reviews on G2[User Reviews]
  4. Qualys VMDR Reviews on G2[User Reviews]
  5. Greenbone OpenVAS Reviews on TrustRadius[User Reviews]
  6. Qualys VMDR Reviews on TrustRadius[User Reviews]
  7. Greenbone OpenVAS Reviews on PeerSpot[User Reviews]
  8. Qualys VMDR Reviews on PeerSpot[User Reviews]
  9. Gartner Peer Insights: Vulnerability Assessment[Peer Reviews]
  10. Forrester Wave: Vulnerability Risk Management, Q3 2023[Analyst Report]
  11. IDC MarketScape: Risk-Based Vulnerability Management 2024[Analyst Report]
  12. NIST National Vulnerability Database (NVD)[Government Standard]
  13. CISA Known Exploited Vulnerabilities Catalog[Government Standard]

Qualys VMDR vs Greenbone OpenVAS FAQ

Common questions about choosing between Qualys VMDR and Greenbone OpenVAS.

What is the main difference between Qualys VMDR and Greenbone OpenVAS?

Greenbone OpenVAS and Qualys VMDR are both open source vulnerability scanner solutions. Greenbone OpenVAS the most widely used open-source vulnerability scanner with 100,000+ network vulnerability tests, while Qualys VMDR cloud-native vulnerability management platform with integrated detection, prioritization, and patch management. The best choice depends on your organization's size, technical requirements, and budget.

Is Greenbone OpenVAS better than Qualys VMDR?

Choose Greenbone OpenVAS if completely free with no licensing costs is your priority and security teams wanting a free, open-source vulnerability scanner with no licensing costs and full customization control. Choose Qualys VMDR if fully cloud-native architecture with no on-prem infrastructure required matters most and organizations wanting an all-in-one cloud-based VM platform with integrated patching and asset inventory.

How much does Greenbone OpenVAS cost compared to Qualys VMDR?

Greenbone OpenVAS pricing: Free (open source) / Greenbone Enterprise appliances from $5,000/year. Qualys VMDR pricing: Custom pricing based on asset count / Typically from $3,000/year for small environments. Greenbone OpenVAS's pricing model is open source with commercial appliance options, while Qualys VMDR uses per-asset (annual subscription) pricing.

Can I migrate from Qualys VMDR to Greenbone OpenVAS?

Yes, you can migrate from Qualys VMDR to Greenbone OpenVAS. The migration process depends on your specific setup and the features you use. Both platforms offer APIs that can facilitate automated migration. Consider running both tools in parallel during the transition to ensure zero downtime.