CVE-2025-6544— Deserialization Vulnerability in h2oai/h2o-3
Quick assessment
Affected
h2oai h2oai/h2o-3
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
H2O是H2O.ai开源的一个用于分布式、可扩展机器学习的内存平台。 H2O 3.46.0.8及之前版本存在安全漏洞，该漏洞源于JDBC连接参数处理不当，可能导致读取任意系统文件和执行任意代码。
Possible ATT&CK Techniques 3 AI
T1005 · Data from Local System T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-6544
Vulnerability Information
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Vulnerability Title
Deserialization Vulnerability in h2oai/h2o-3
Source: CVE Program / CVE List V5
Vulnerability Description
A deserialization vulnerability exists in h2oai/h2o-3 versions <= 3.46.0.8, allowing attackers to read arbitrary system files and execute arbitrary code. The vulnerability arises from improper handling of JDBC connection parameters, which can be exploited by bypassing regular expression checks and using double URL encoding. This issue impacts all users of the affected versions.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
H2O 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
H2O是H2O.ai开源的一个用于分布式、可扩展机器学习的内存平台。 H2O 3.46.0.8及之前版本存在安全漏洞，该漏洞源于JDBC连接参数处理不当，可能导致读取任意系统文件和执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| h2oai | h2oai/h2o-3 | unspecified ~ 3.46.8 | - |
|
II. Public POCs for CVE-2025-6544
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · h2oai · 2025-09-21 · 3 CVEs total
| CVE-2025-10769 | 6.3 MEDIUM | h2oai h2o-3 H2 JDBC Driver ImportSQLTable deserialization |
| CVE-2025-10768 | 6.3 MEDIUM | h2oai h2o-3 IBMDB2 JDBC Driver ImportSQLTable deserialization |
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V. Comments for CVE-2025-6544
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