# Tor Browser vulnerabilities

> Tor Browser is made by Torproject. We track 5 published vulnerabilities in it, across 47 versions. None of them is on the list of flaws known to be exploited today. If you run Tor Browser, keep it on a version the vendor still supports.

Canonical page: https://www.precursorintelligence.com/product/torproject/tor_browser

## At a glance

- **Made by:** [Torproject](https://www.precursorintelligence.com/vendors/torproject)
- **Published vulnerabilities:** 5
- **Known to be exploited:** 0
- **Versions tracked:** 47

## Which Tor Browser vulnerabilities are being exploited?

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

## Which Tor Browser 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-2018-16983](https://www.precursorintelligence.com/what-is/cve-2018-16983): 3.1%, Critical (CVSS 9.8)
- [CVE-2017-16639](https://www.precursorintelligence.com/what-is/cve-2017-16639): 2.4%, Medium (CVSS 4.3)
- [CVE-2019-12383](https://www.precursorintelligence.com/what-is/cve-2019-12383): 2.2%, Medium (CVSS 4.3)
- [CVE-2019-13075](https://www.precursorintelligence.com/what-is/cve-2019-13075): 1.9%, Medium (CVSS 5.3)
- [CVE-2021-39246](https://www.precursorintelligence.com/what-is/cve-2021-39246): 0.5%, Medium (CVSS 6.1)

## Questions

### How many vulnerabilities does Tor Browser have?

We track 5 published vulnerabilities listed under the name Tor Browser, across 47 versions.

### Which Tor Browser vulnerabilities are being exploited?

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

### How do I get alerts for Tor Browser?

Create a Precursor Intelligence account and track Tor Browser. 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 Tor Browser?

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.

Start free (no card, nothing to install): https://www.precursorintelligence.com/register
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