by Kastro
Paper/Archive/CVE-2025-5662

CVE-2025-5662

h2oai h2oai/h2o-3 — Deserialization Vulnerability in h2oai/h2o-3

EPSS 0.7%public exploitCVSS 9.8
critical.is priorityof 100
50
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 53.0.530 × 2010.6Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

A deserialization vulnerability exists in the H2O-3 REST API (POST /99/ImportSQLTable) that affects all versions up to 3.46.0.7. This vulnerability allows remote code execution (RCE) due to improper validation of JDBC connection parameters when using a Key-Value format. The vulnerability is present in the MySQL JDBC Driver version 8.0.19 and JDK version 8u112. The issue is resolved in version 3.46.0.8.

Affected

ProductAffectedFixed inSource
h2oai/h2o-3unspecified – < 3.46.0.83.46.0.8CNA

Scores by source

@huntr_ai (CNA)9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refhuntr.com/bounties/057a743b-b2ec-4312-8262-ce0ff8bc161crefgithub.com/h2oai/h2o-3/commit/f714edd6b8429c7a7211b779b6ec108a95b7382d