What is CVE-2025-66214?

CVE-2025-66214 is a high-severity vulnerability in Wearefrank Ladybug, classified under Deserialization of Untrusted Data. CVSS score: 7.0/10. Published 2025-12-09.

How severe is CVE-2025-66214?

High severity. CVSS v3 base score is 7.0 out of 10.

Deserialization in Wearefrank Ladybug

CVE-2025-66214

Ladybug adds message-based debugging, unit, system, and regression testing to Java applications. Versions prior to 3.0-20251107.114628 contain the APIs /iaf/ladybug/api/report/{storage} and /iaf/ladybug/api/report/upload, which allow uploading gzip-compressed XML files with user-controllable content. The system deserializes these XML files, enabling attackers to achieve Remote Code Execution (RCE) by submitting carefully crafted XML payloads and thereby gain access to the target server. This issue is fixed in version 3.0-20251107.114628.

Vulnerability class: Insecure Deserialization

EPSS: 0.003 (21.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L.

Affected products

Wearefrank Ladybug — versions < 3.0-20251107.114628

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2025-66214?: CVE-2025-66214 is a high-severity vulnerability in Wearefrank Ladybug, classified under Deserialization of Untrusted Data. CVSS score: 7.0/10. Published 2025-12-09.
How severe is CVE-2025-66214?: High severity. CVSS v3 base score is 7.0 out of 10.