{"id":"CVE-2025-5662","aliases":["EUVD-2025-26414"],"status":"published","title":"Deserialization Vulnerability in h2oai/h2o-3","description":"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.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00695,"percentile":0.53296,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2025-09-02T11:14:52Z","modified":"2026-10-28T10:40:59Z","products":[{"vendor":"h2oai","product":"h2oai/h2o-3"}],"references":[{"url":"https://huntr.com/bounties/057a743b-b2ec-4312-8262-ce0ff8bc161c","tags":["web"]},{"url":"https://github.com/h2oai/h2o-3/commit/f714edd6b8429c7a7211b779b6ec108a95b7382d","tags":["fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/5xxx/CVE-2025-5662.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-5662","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-5662","title":"Deserialization Vulnerability in h2oai/h2o-3","description":"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.","status":"published","published":"2025-09-02T11:14:52.744Z","modified":"2025-09-02T15:50:21.879Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:32:29.97618Z"}],"euvd":[{"id":"EUVD-2025-26414","description":"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.","status":"published","published":"2025-09-02T11:14:52Z","modified":"2025-09-02T15:50:21Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:31:48.3448Z"}],"nvd":[{"id":"CVE-2025-5662","description":"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.","status":"published","published":"2025-09-02T12:15:38.42Z","modified":"2026-06-17T09:48:29.993Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:11:26.200344Z"}],"osv":[{"id":"CVE-2025-5662","title":"Deserialization Vulnerability in h2oai/h2o-3","description":"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.","status":"published","published":"2025-09-02T11:14:52.744Z","modified":"2026-10-28T10:40:59.405872477Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:44:51.190588Z"}]}}