# Nessus Agent vulnerabilities

> Nessus Agent is made by Tenable. We track 9 published vulnerabilities in it, across 86 versions. None of them is on the list of flaws known to be exploited today. If you run Nessus Agent, keep it on a version the vendor still supports.

Canonical page: https://www.precursorintelligence.com/product/tenable/nessus_agent

## At a glance

- **Made by:** [Tenable](https://www.precursorintelligence.com/vendors/tenable)
- **Published vulnerabilities:** 9
- **Known to be exploited:** 0
- **Versions tracked:** 86

## Which Nessus Agent vulnerabilities are being exploited?

None of Nessus Agent's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.

## Which Nessus Agent flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days):

- [CVE-2019-16168](https://www.precursorintelligence.com/what-is/cve-2019-16168): 4.3%, Medium (CVSS 6.5)
- [CVE-2020-5793](https://www.precursorintelligence.com/what-is/cve-2020-5793): 0.4%, High (CVSS 7.8)
- [CVE-2021-20077](https://www.precursorintelligence.com/what-is/cve-2021-20077): 0.3%, Medium (CVSS 6.7)
- [CVE-2021-20118](https://www.precursorintelligence.com/what-is/cve-2021-20118): 0.3%, Medium (CVSS 6.7)
- [CVE-2021-20117](https://www.precursorintelligence.com/what-is/cve-2021-20117): 0.3%, Medium (CVSS 6.7)
- [CVE-2023-5847](https://www.precursorintelligence.com/what-is/cve-2023-5847): 0.2%, High (CVSS 7.3)
- [CVE-2025-36633](https://www.precursorintelligence.com/what-is/cve-2025-36633): 0.2%, High (CVSS 8.8)
- [CVE-2025-36631](https://www.precursorintelligence.com/what-is/cve-2025-36631): 0.2%, High (CVSS 8.4)

## Questions

### How many vulnerabilities does Nessus Agent have?

We track 9 published vulnerabilities listed under the name Nessus Agent, across 86 versions.

### Which Nessus Agent vulnerabilities are being exploited?

None of Nessus Agent's vulnerabilities is on the list of flaws known to be exploited today.

### How do I get alerts for Nessus Agent?

Create a Precursor Intelligence account and track Nessus Agent. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.

## Running Nessus Agent?

Precursor Intelligence keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

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