# Log4net vulnerabilities

> Log4net is made by Apache. We track 2 published vulnerabilities in it, across 9 versions. None of them is on the list of flaws known to be exploited today. If you run Log4net, keep it on a version the vendor still supports.

Canonical page: https://www.precursorintelligence.com/product/apache/log4net

## At a glance

- **Made by:** [Apache](https://www.precursorintelligence.com/vendors/apache)
- **Published vulnerabilities:** 2
- **Known to be exploited:** 0
- **Versions tracked:** 9

## Which Log4net vulnerabilities are being exploited?

None of Log4net's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.

## Which Log4net 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-2018-1285](https://www.precursorintelligence.com/what-is/cve-2018-1285): 18%, Critical (CVSS 9.8)
- [CVE-2006-0743](https://www.precursorintelligence.com/what-is/cve-2006-0743): 6.4%, Medium (CVSS 5.0)
- [CVE-2026-105241](https://www.precursorintelligence.com/what-is/cve-2026-105241): 0.8%, Medium (CVSS 5.3)
- [CVE-2026-105242](https://www.precursorintelligence.com/what-is/cve-2026-105242): 0.8%, Medium (CVSS 5.3)
- [CVE-2026-105244](https://www.precursorintelligence.com/what-is/cve-2026-105244): 0.8%, Medium (CVSS 5.3)
- [CVE-2026-105239](https://www.precursorintelligence.com/what-is/cve-2026-105239): 0.8%, Medium (CVSS 5.3)
- [CVE-2026-105243](https://www.precursorintelligence.com/what-is/cve-2026-105243): 0.8%, Medium (CVSS 5.3)
- [CVE-2026-105240](https://www.precursorintelligence.com/what-is/cve-2026-105240): 0.8%, Medium (CVSS 5.3)

## Questions

### How many vulnerabilities does Log4net have?

We track 2 published vulnerabilities listed under the name Log4net, across 9 versions.

### Which Log4net vulnerabilities are being exploited?

None of Log4net's vulnerabilities is on the list of flaws known to be exploited today.

### How do I get alerts for Log4net?

Create a Precursor Intelligence account and track Log4net. 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 Log4net?

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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