What is CVE-2025-66614?

CVE-2025-66614 is a critical-severity vulnerability in Apache Tomcat, classified under Improper Input Validation. CVSS score: 9.1/10. Published 2026-02-17.

How severe is CVE-2025-66614?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Improper input validation in Apache Tomcat

CVE-2025-66614

Improper Input Validation vulnerability. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0-M1 through 9.0.112. The following versions were EOL at the time the CVE was created but…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.002 (14.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Apache Tomcat — versions 9.0.0, 10.1.0, 11.0.0
Apache Software Foundation Tomcat — versions 11.0.0-M1, 10.1.0-M1, 9.0.0-M1

Weakness classification (CWE)

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2025-66614?: CVE-2025-66614 is a critical-severity vulnerability in Apache Tomcat, classified under Improper Input Validation. CVSS score: 9.1/10. Published 2026-02-17.
How severe is CVE-2025-66614?: Critical severity. CVSS v3 base score is 9.1 out of 10.