Network & infrastructure
Vulnix vs Nessus
Nessus inventories known vulnerabilities and misconfigurations across hosts and networks. Vulnix pentests your applications and proves which issues an attacker can actually exploit.
Choose Vulnix if
You need to know whether your web app, API or code can actually be exploited, not just which known CVEs are present.
Choose Nessus if
You need an exhaustive inventory of known host and network vulnerabilities across a large estate.
Side by side
How Vulnix and Nessus compare
Capability
VulnixNessus- Delivery modelSelf-serve SaaS: sign up and launch a pentest in minutesProprietary scanner, licensed per scanner per yearDelivery modelSelf-serve SaaS: sign up and launch a pentest in minutesProprietary scanner, licensed per scanner per year
- Exploit-validated findingsYesEvery finding ships with reproduction evidenceNoPlugin-based detection of known CVEsExploit-validated findingsYesEvery finding ships with reproduction evidenceNoPlugin-based detection of known CVEs
- Live web app & API testingYesAuthenticated blackbox runs against your verified domainsPartlyBasic web checks onlyLive web app & API testingYesAuthenticated blackbox runs against your verified domainsPartlyBasic web checks only
- Pull-request security reviewYesInline GitHub review plus a Checks status on every PRNoNoPull-request security reviewYesInline GitHub review plus a Checks status on every PRNoNo
- Fix pull requestsPartlyOne-click fix PR for whitebox findings that carry a patchNoNoFix pull requestsPartlyOne-click fix PR for whitebox findings that carry a patchNoNo
- Internal network & Active DirectoryNoTests external, internet-facing infrastructure, not internal/RFC-1918 networks or ADYesHost and network vulnerability inventoryInternal network & Active DirectoryNoTests external, internet-facing infrastructure, not internal/RFC-1918 networks or ADYesHost and network vulnerability inventory
- Auditor-ready compliance reportsNoExportable findings reports, not an audit attestationYesConfiguration and benchmark auditsAuditor-ready compliance reportsNoExportable findings reports, not an audit attestationYesConfiguration and benchmark audits
- Self-hosted or on-premNoManaged cloud; every run in its own isolated sandboxYesSelf-hosted scannerSelf-hosted or on-premNoManaged cloud; every run in its own isolated sandboxYesSelf-hosted scanner
- Best forProduct teams testing web apps, APIs and code on every releaseIT teams inventorying host vulnerabilitiesBest forProduct teams testing web apps, APIs and code on every releaseIT teams inventorying host vulnerabilities
Nessus details are taken from its public product pages and published pricing, reviewed September 2026. Rows we couldn't confirm are left out rather than guessed. Nessus and Tenable are trademarks of their respective owners.
Where Vulnix goes further
- Exploit-validated findingsEvery finding ships with reproduction evidence
- Pull-request security reviewInline GitHub review plus a Checks status on every PR
- Fix pull requestsOne-click fix PR for whitebox findings that carry a patch
Where Nessus is strong
- A very large plugin library covering operating systems, devices and services.
- Configuration audits and compliance benchmark checks.
- A standard familiar to auditors and IT teams.
Questions
What's the difference between Vulnix and Nessus?
Nessus inventories known vulnerabilities and misconfigurations across hosts and networks. Vulnix pentests your applications and proves which issues an attacker can actually exploit.
When should I choose Vulnix over Nessus?
Choose Vulnix if you need to know whether your web app, API or code can actually be exploited, not just which known CVEs are present.
When is Nessus the better fit?
Choose Nessus if you need an exhaustive inventory of known host and network vulnerabilities across a large estate.
How does Vulnix pricing compare with Nessus?
Vulnix starts with a free trial, then plans from $99/mo. Each action costs a flat number of credits: a quick scan is 25, a deep pentest 100, a whitebox pentest 150 and a PR review 15.
Can I use Vulnix and Nessus together?
Yes. Nessus covers the host and network inventory; Vulnix covers the application layer on top of it.
