# Tomcat vulnerabilities

> Tomcat is made by Apache. We track 233 published vulnerabilities listed under that exact name, across 656 versions. 6 of them are on the list of flaws known to be exploited, the newest added on 1 April 2025. Apache lists newer releases under their own names, such as Tomcat Jk Connector, so check those pages too.

Canonical page: https://www.edgeprotect.io/product/apache/tomcat

## At a glance

- **Made by:** [Apache](https://www.edgeprotect.io/vendors/apache)
- **Published vulnerabilities:** 233
- **Known to be exploited:** 6 (listed under the name Tomcat)
- **Versions tracked:** 656
- **Most recently added to the known-exploited list:** [CVE-2025-24813](https://www.edgeprotect.io/what-is/cve-2025-24813), 1 April 2025. We keep watching the list.

## Is Tomcat listed under other names?

Apache also lists Tomcat under more specific names, such as Tomcat Jk Connector and Tomcat Native. Flaws listed only under those names are counted on their own pages, not here.

- [Tomcat Jk Connector](https://www.edgeprotect.io/product/apache/tomcat_jk_connector): 3 published vulnerabilities
- [Tomcat Native](https://www.edgeprotect.io/product/apache/tomcat_native): 3 published vulnerabilities
- [Tomcat Connectors](https://www.edgeprotect.io/product/apache/tomcat_connectors): 2 published vulnerabilities
- [Tomcat Jk Web Server Connector](https://www.edgeprotect.io/product/apache/tomcat_jk_web_server_connector): 2 published vulnerabilities

## Which versions of Tomcat do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published. "before 9.0.99" means every version up to, but not including, 9.0.99.

- [CVE-2025-24813](https://www.edgeprotect.io/what-is/cve-2025-24813) (Apache Tomcat Path Equivalence Vulnerability): before 9.0.99, 10.1.0-milestone1, 10.1.0-milestone2, 10.1.0-milestone3, 10.1.0-milestone4, 10.1.0-milestone5, 10.1.0-milestone6, 10.1.0-milestone7, 10.1.0-milestone8, 10.1.0-milestone9, 10.1.0-milestone10, 10.1.0-milestone11, 10.1.0-milestone12, 10.1.0-milestone13, 10.1.0-milestone14, 10.1.0-milestone15, 10.1.0-milestone16, 10.1.0-milestone17, 10.1.0-milestone18, 10.1.0-milestone19, 10.1.0-milestone20, 10.1.1 to before 10.1.35, 11.0.0-milestone1, 11.0.0-milestone2, 11.0.0-milestone3, 11.0.0-milestone4, 11.0.0-milestone5, 11.0.0-milestone6, 11.0.0-milestone7, 11.0.0-milestone8, 11.0.0-milestone9, 11.0.0-milestone10, 11.0.0-milestone11, 11.0.0-milestone12, 11.0.0-milestone13, 11.0.0-milestone14, 11.0.0-milestone15, 11.0.0-milestone16, 11.0.0-milestone17, 11.0.0-milestone18, 11.0.0-milestone19, 11.0.0-milestone20, 11.0.0-milestone21, 11.0.0-milestone22, 11.0.0-milestone23, 11.0.0-milestone24, 11.0.0-milestone25, 11.0.1 to before 11.0.3
- [CVE-2023-44487](https://www.edgeprotect.io/what-is/cve-2023-44487) (HTTP/2 Rapid Reset Attack Vulnerability): 8.5.0 to 8.5.93, 9.0.0 to 9.0.80, 10.1.0 to 10.1.13, 11.0.0-milestone1, 11.0.0-milestone2, 11.0.0-milestone3, 11.0.0-milestone4, 11.0.0-milestone5, 11.0.0-milestone6, 11.0.0-milestone7, 11.0.0-milestone8, 11.0.0-milestone9, 11.0.0-milestone10, 11.0.0-milestone11
- [CVE-2016-8735](https://www.edgeprotect.io/what-is/cve-2016-8735) (Apache Tomcat Remote Code Execution Vulnerability): before 6.0.48, 7.0.0 to before 7.0.73, 8.0 to before 8.0.39, 8.5.0 to before 8.5.7, 9.0.0, 9.0.0-milestone1, 9.0.0-milestone2, 9.0.0-milestone3, 9.0.0-milestone4, 9.0.0-milestone5, 9.0.0-milestone6, 9.0.0-milestone7, 9.0.0-milestone8, 9.0.0-milestone9, 9.0.0-milestone10, 9.0.0-milestone11
- [CVE-2017-12615](https://www.edgeprotect.io/what-is/cve-2017-12615) (Apache Tomcat on Windows Remote Code Execution Vulnerability): 7.0.0 to 7.0.79
- [CVE-2017-12617](https://www.edgeprotect.io/what-is/cve-2017-12617) (Apache Tomcat Remote Code Execution Vulnerability): 7.0.0 to before 7.0.82, 8.0 to before 8.0.47, 8.5.0 to before 8.5.23, 9.0.0 to before 9.0.1
- [CVE-2020-1938](https://www.edgeprotect.io/what-is/cve-2020-1938) (Apache Tomcat Improper Privilege Management Vulnerability): 7.0.0 to before 7.0.100, 8.5.0 to before 8.5.51, 9.0.0 to before 9.0.31

## Which Tomcat vulnerabilities are being exploited?

6 flaws are on the government list of vulnerabilities known to be exploited, newest first:

- [CVE-2025-24813](https://www.edgeprotect.io/what-is/cve-2025-24813): Apache Tomcat Path Equivalence Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 1 April 2025.
- [CVE-2023-44487](https://www.edgeprotect.io/what-is/cve-2023-44487): HTTP/2 Rapid Reset Attack Vulnerability. High, CVSS 7.5, chance of use in 30 days >99%, known exploited since 10 October 2023.
- [CVE-2016-8735](https://www.edgeprotect.io/what-is/cve-2016-8735): Apache Tomcat Remote Code Execution Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 90%, known exploited since 12 May 2023.
- [CVE-2017-12615](https://www.edgeprotect.io/what-is/cve-2017-12615): Apache Tomcat on Windows Remote Code Execution Vulnerability. High, CVSS 8.1, chance of use in 30 days >99%, known exploited since 25 March 2022.
- [CVE-2017-12617](https://www.edgeprotect.io/what-is/cve-2017-12617): Apache Tomcat Remote Code Execution Vulnerability. High, CVSS 8.1, chance of use in 30 days >99%, known exploited since 25 March 2022.
- [CVE-2020-1938](https://www.edgeprotect.io/what-is/cve-2020-1938): Apache Tomcat Improper Privilege Management Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 3 March 2022.

## Which Tomcat 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-2023-44487](https://www.edgeprotect.io/what-is/cve-2023-44487): >99%, High (CVSS 7.5), known exploited
- [CVE-2017-12617](https://www.edgeprotect.io/what-is/cve-2017-12617): >99%, High (CVSS 8.1), known exploited
- [CVE-2025-24813](https://www.edgeprotect.io/what-is/cve-2025-24813): >99%, Critical (CVSS 9.8), known exploited
- [CVE-2008-2938](https://www.edgeprotect.io/what-is/cve-2008-2938): >99%, Medium (CVSS 4.3)
- [CVE-2017-12615](https://www.edgeprotect.io/what-is/cve-2017-12615): >99%, High (CVSS 8.1), known exploited
- [CVE-2020-1938](https://www.edgeprotect.io/what-is/cve-2020-1938): >99%, Critical (CVSS 9.8), known exploited
- [CVE-2018-11784](https://www.edgeprotect.io/what-is/cve-2018-11784): 98%, Medium (CVSS 4.3)
- [CVE-2009-0580](https://www.edgeprotect.io/what-is/cve-2009-0580): 94%, Medium (CVSS 4.3)
- [CVE-2007-0450](https://www.edgeprotect.io/what-is/cve-2007-0450): 91%, Medium (CVSS 5.0)

## Questions

### How many vulnerabilities does Tomcat have?

We track 233 published vulnerabilities listed under the name Tomcat, across 656 versions. The most recent Tomcat flaw added to the known-exploited list is CVE-2025-24813, on 1 April 2025.

### Which Tomcat vulnerabilities are being exploited?

6 are on the list of flaws known to be exploited. The most recently added are CVE-2025-24813, CVE-2023-44487 and CVE-2016-8735.

### Why are newer Tomcat flaws missing from this page?

Apache also lists Tomcat under more specific names, such as Tomcat Jk Connector and Tomcat Native. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.

### Which versions of Tomcat do the exploited flaws affect?

Each flaw names its own versions, usually as ranges. The newest, CVE-2025-24813, affects before 9.0.99, 10.1.0-milestone1, 10.1.0-milestone2, 10.1.0-milestone3 and more. The versions for every exploited flaw are listed on this page.

### How do I get alerts for Tomcat?

Create a EdgeProtect account and track Tomcat. 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 Tomcat?

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- **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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