---
id: CVE-2025-10768
title: A flaw has been found in h2oai h2o-3 up to 3.46.08
summary: >-
  A flaw has been found in h2oai h2o-3 up to 3.46.08. The impacted element is an
  unknown function of the file /99/ImportSQLTable of the component IBMDB2 JDBC
  Driver. This manipulation of the argument connection_url causes
  deserialization. …
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-20
  - CWE-502
  - CWE-502
vendor: h2o
product: h2o
affected:
  - 'h2o >= 3.0.0.2, <= 3.46.0.8'
published: '2025-09-21'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T23:10:00.237'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-10768'
references:
  - url: 'https://github.com/ez-lbz/poc/issues/50'
    label: cna@vuldb.com
  - url: 'https://github.com/ez-lbz/poc/issues/50#issue-3389830879'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?ctiid.325124'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?id.325124'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?submit.649508'
    label: cna@vuldb.com
  - url: 'https://github.com/ez-lbz/poc/issues/50'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/ez-lbz/poc/issues/50#issue-3389830879'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.0043
epssPercentile: 0.34866
ingestedAt: '2026-09-30T23:29:32.390Z'
---

## Overview

A flaw has been found in h2oai h2o-3 up to 3.46.08. The impacted element is an unknown function of the file /99/ImportSQLTable of the component IBMDB2 JDBC Driver. This manipulation of the argument connection_url causes deserialization. The attack may be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

## Affected

- `h2o >= 3.0.0.2, <= 3.46.0.8`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.