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TridentStack Control vs OpenVAS

OpenVAS and Greenbone products assess network targets with authenticated and unauthenticated scans. Greenbone Community Edition is self-managed open-source software, while OPENVAS FREE is a separate restricted appliance and OPENVAS SCAN is commercial. TridentStack Control focuses on managed endpoints, continuously detecting vulnerabilities from software inventory and including patch deployment and DISA STIG scoring. OPENVAS SCAN has Windows and Linux agents in technology preview, so the products can complement each other rather than being direct substitutes.
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At a glance: TridentStack Control vs OpenVAS

CapabilityTridentStack ControlOpenVAS
Free offer
Greenbone's scanner is free to use. You run the server, database, and feed updates yourself. OPENVAS FREE is a separate, restricted virtual appliance.
200 endpoints free forever, commercial use allowedCommunity Edition is free software you host
Endpoint agent
OPENVAS SCAN has Windows and Linux agents in technology preview, which Greenbone says are not intended for production use.
YesPreview (OPENVAS SCAN)
Network and unauthenticated scanning
OpenVAS supports authenticated and unauthenticated network scans. TridentStack Control is an endpoint scanner and does not replace that coverage.
NoYes
Network devices and web application scanning
Greenbone assesses network devices. SCAN can detect known web-application vulnerabilities covered by feed tests, but Greenbone says it is not a web application security scanner.
NoPartial
CVSS / EPSS / CISA KEV prioritization
Greenbone's Enterprise Feed adds EPSS-based prioritization; the free Community Feed does not include it.
YesCVSS, EPSS (Enterprise Feed)
Patch deployment
Greenbone provides remediation guidance and tickets, and recommends central patch tools such as WSUS, SCCM, or Ansible.
YesThrough external tools
Third-party application patching
Greenbone recommends central patch tools such as WSUS, SCCM, or Ansible.
YesThrough external tools
DISA STIG configuration scoring
Greenbone's Enterprise Feed includes CIS Benchmark checks. TridentStack Control scores DISA STIGs and Microsoft Security Baselines.
YesCIS checks (Enterprise Feed)
Hosted, nothing to run
Greenbone Community Edition and SCAN appliances are self-managed. Greenbone Cloud Service is hosted, with gateway components for internal targets.
YesPartial
MSP multi-tenancy
Greenbone runs an MSSP program, and Greenbone Cloud Service includes customer management for service providers.
YesMSSP program
Published pricing
OPENVAS BASIC is EUR 2,524 per year. OPENVAS SCAN is priced by quote.
$5 per endpoint per month after 200 freePartial

Where OpenVAS is genuinely better

Honest about where the competition wins. If your fleet looks like the cases below, OpenVAS is the right answer.

  • ·OpenVAS supports authenticated and unauthenticated network scanning. Greenbone's broader enterprise feed covers servers, workstations, network devices, IoT, and selected industrial components; TridentStack Control does not scan networks or these non-endpoint targets.
  • ·Greenbone Community Edition is open-source software and its scanner is free to use. Greenbone also offers self-managed commercial appliances for organizations that require operation within their own environment, including air-gapped deployments.
  • ·Greenbone provides remediation recommendations and tickets, and points customers to central patch tools such as WSUS, SCCM, or Ansible.
  • ·OPENVAS SCAN supports Windows and Linux endpoint agents in technology preview, with no separate agent license fee. Greenbone says the preview is not intended for production use.
  • ·OPENVAS BASIC publishes a price of EUR 2,524 per year and a 14-day trial. OPENVAS SCAN is quote-based; its current licensing defines an asset quota.

Where TridentStack Control is genuinely better

The capabilities that don't exist in OpenVAS or only exist as separate paid SKUs.

  • ·The first 200 endpoints are free forever for commercial use, hosted for you, with every feature included. Greenbone Community Edition is free software you install, update, and operate yourself.
  • ·TridentStack Control continuously detects endpoint vulnerabilities from software inventory, rather than waiting for scheduled network sweeps.
  • ·Endpoint operating system and third-party application patch deployment is included in the same price as vulnerability detection. Greenbone provides remediation guidance and tracking, and recommends external patch tools.
  • ·DISA STIG scoring for supported Windows, macOS, Ubuntu LTS, and RHEL endpoints is included, plus Microsoft Security Baselines for Windows.
  • ·TridentStack Control is hosted, uses outbound agent connections on port 443, includes MSP multi-tenancy, and provides vendor email support on every endpoint, including free endpoints.
  • ·Findings carry CVSS, EPSS, and CISA KEV status and are grouped by the update that fixes them, with exception expiry and an audit trail.

Pricing at your fleet size

Drag the slider to your fleet size. The math is the math.

Endpoints250
TridentStack Control
$250
per month
OpenVAS
Pricing not directly comparable
OpenVAS pricing depends on bundles, server licenses, or admin overhead.

How to migrate from OpenVAS to TridentStack Control

A plain-language sequence. Skip the steps that don't apply to your fleet.

  1. 1

    Keep Greenbone for network and device coverage

    TridentStack Control does not scan networks, unauthenticated hosts, network devices, IoT, or web applications. Keep Greenbone for those targets, or run both products if you want continuous endpoint inventory-based detection.

  2. 2

    Pilot the endpoint agent alongside existing scans

    Install TridentStack Control on a small group of supported endpoints and compare its inventory-based findings with Greenbone results for the same machines. OPENVAS SCAN's agent feature remains a technology preview, so verify its support status before relying on it in production.

  3. 3

    Compare detection and remediation workflows

    Review CVSS, EPSS, and CISA KEV status alongside Greenbone's feed-specific signals. Keep network findings and recommendations in Greenbone, and evaluate TridentStack Control's findings grouped by the update that fixes them.

  4. 4

    Move endpoint patching into deployment rings

    Use TridentStack Control's included operating system and third-party application patching with approval rules and deployment rings. Continue using your current patch tooling for network or non-endpoint assets.

Frequently asked questions about OpenVAS and TridentStack Control

Does TridentStack Control replace a network scanner?

No. TridentStack Control detects vulnerabilities on managed endpoints from software inventory. It does not scan networks, unauthenticated hosts, network devices, hypervisors, web applications, containers, or cloud configurations. Keep Greenbone for network coverage, or run both and use TridentStack Control for endpoint detection and patching.

Does OpenVAS have endpoint agents?

OPENVAS SCAN has Windows and Linux agents in technology preview. Greenbone says the feature is not intended for production use. TridentStack Control provides an agent-based endpoint scanner.

Can Greenbone deploy patches?

Greenbone provides remediation guidance and tickets, and recommends central patch tools such as WSUS, SCCM, or Ansible. TridentStack Control includes endpoint operating system and third-party application patch deployment.

Is Greenbone Community Edition the same as OPENVAS FREE?

No. Community Edition is a self-managed open-source scanning and management framework. OPENVAS FREE is a separate restricted virtual appliance using the Community Feed. Appliance restrictions apply only to that product, not to self-managed Community Edition.

What Greenbone pricing is public?

OPENVAS BASIC is listed at EUR 2,524 per year and advertises a 14-day free trial. OPENVAS SCAN is quote-based and its current licensing specifies an asset quota.

See your fleet on TridentStack Control

200 endpoints free forever. No credit card required. No sales call required.

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See the free patch management and free vulnerability scanning comparison tables.

Compare TridentStack Control against other tools

Every comparison page is fact-checked against vendor documentation and re-verified at least every 90 days.

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Sources used to verify this comparison

All OpenVAS pricing, feature, and lifecycle claims on this page were verified against the sources below on 2026-10-21. Vendor pricing and capabilities change; if you spot something out of date, let us know.