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Known exploited vulnerability

CVE-2025-24813

criticalCVSS 3.1 9.8In CISA KEVEPSS 100%Published · Apache Software Foundation

The short answer

CVE-2025-24813 affects Apache Software Foundation Apache Tomcat and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2025-04-01: attackers are using it, so patch it first. Fixed versions are published for tomcat-catalina (11.0.3, 10.1.35, 9.0.99) and tomcat-embed-core (11.0.3, 10.1.35, 9.0.99).

What it is

Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to uploaded files via write enabled Default Servlet in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.2, from 10.1.0-M1 through 10.1.34, from 9.0.0.M1 through 9.0.98. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. If all of the following were true, a malicious user was able to view security sensitive files and/or inject content into those files: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - a target URL for security sensitive uploads that was a sub-directory of a target URL for public uploads - attacker knowledge of the names of security sensitive files being uploaded - the security sensitive files also being uploaded via partial PUT If all of the following were true, a malicious user was able to perform remote code execution: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - application was using Tomcat's file based session persistence with the default storage location - application included a library that may be leveraged in a deserialization attack Users are recommended to upgrade to version 11.0.3, 10.1.35 or 9.0.99, which fixes the issue.

Weakness: CWE-44, CWE-502, CWE-706.

Severity

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploited (CISA KEV)

Yes, since Apr 1, 2025

Federal due date Apr 22, 2025

EPSS, next 30 days

100%

Higher than 100% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Affected packages and fixed versions

PackageEcosystemFixed inAdvisory
org.apache.tomcat:tomcat-catalinaMaven11.0.3, 10.1.35, 9.0.99GHSA-83qj-6fr2-vhqg
org.apache.tomcat.embed:tomcat-embed-coreMaven11.0.3, 10.1.35, 9.0.99GHSA-83qj-6fr2-vhqg

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Affected products

Apache Tomcat. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2025-24813 being exploited?

Yes. CISA added CVE-2025-24813 to its Known Exploited Vulnerabilities catalog on 2025-04-01, with a federal remediation due date of 2025-04-22.

How do I fix CVE-2025-24813?

Upgrade to a fixed version: org.apache.tomcat:tomcat-catalina (Maven) 11.0.3 or 10.1.35 or 9.0.99; org.apache.tomcat.embed:tomcat-embed-core (Maven) 11.0.3 or 10.1.35 or 9.0.99. CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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