# OpenVAS vs ZEST Security: side-by-side comparison (2026)

[OpenVAS](https://cybersectools.com/tools/greenbone-openvas) is a free [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution. [ZEST Security](https://cybersectools.com/tools/zest-security) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [ZEST Security](https://cybersectools.com/companies/zest-security). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | OpenVAS | ZEST Security |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Vulnerability Assessment | Vulnerability Assessment |
| Verified | No | No |
| Deployment type | – | Cloud |
| Company size fit | – | Mid-Market, Enterprise |
| Company | – | ZEST Security |
| Headquarters | – | – |

### Use cases and capabilities

| | OpenVAS | ZEST Security |
|---|---|---|
| Open Source | Yes | – |
| Attack Paths | – | Yes |
| Misconfiguration | – | Yes |

### Core features

**OpenVAS**

No features listed.

**ZEST Security**

9 features listed. Sign in on the page to see them.

### Integrations

**OpenVAS**

No integrations listed.

**ZEST Security**

1 integration listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [OpenVAS](https://cybersectools.com/tools/greenbone-openvas) fits if you need a free product.

## OpenVAS vs ZEST Security FAQ

Common questions when comparing OpenVAS vs ZEST Security for vulnerability assessment.

### What is the difference between OpenVAS and ZEST Security?

**OpenVAS**: OpenVAS is an open-source vulnerability scanner that provides extensive testing capabilities for identifying security weaknesses in networks and systems.

**ZEST Security**: Agentic cloud exposure management platform with AI-driven remediation, built by ZEST Security.

The table above shows where their features, integrations, deployment and company size fit differ.

### Is OpenVAS a good alternative to ZEST Security?

Often, yes. OpenVAS and ZEST Security are both Vulnerability Assessment products. Key differences: OpenVAS is Free while ZEST Security is Commercial. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [OpenVAS vs Saporo AD Hardening](https://cybersectools.com/compare/greenbone-openvas-vs-saporo-ad-hardening)
- [OpenVAS vs Intruder Cloud Security](https://cybersectools.com/compare/greenbone-openvas-vs-intruder-cloud-security)
- [OpenVAS vs NopSec CTEM](https://cybersectools.com/compare/greenbone-openvas-vs-nopsec-ctem)
- [ZEST Security vs Saporo AD Hardening](https://cybersectools.com/compare/saporo-ad-hardening-vs-zest-security)
- [ZEST Security vs Intruder Cloud Security](https://cybersectools.com/compare/intruder-cloud-security-vs-zest-security)
- [ZEST Security vs NopSec CTEM](https://cybersectools.com/compare/nopsec-ctem-vs-zest-security)

## Alternatives to each

- [See all OpenVAS alternatives](https://cybersectools.com/alternatives/greenbone-openvas)
- [See all ZEST Security alternatives](https://cybersectools.com/alternatives/zest-security)

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Source: https://cybersectools.com/compare/greenbone-openvas-vs-zest-security

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/greenbone-openvas.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on OpenVAS and ZEST Security: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md