What is the CVSS score of CVE-2024-8616?

CVE-2024-8616 has a CVSS 3.0 base score of 8.2 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H. EPSS exploitation probability: 0.1%.

Which versions of H2O are affected by CVE-2024-8616?

Organizations using h2oai/h2o-3 face notable risk from CVE-2024-8616 rated CVSS 8.2.

Is there a public PoC exploit available for CVE-2024-8616?

Yes, a public proof-of-concept exploit is available for CVE-2024-8616. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2024-8616?

Within 7 days: Identify all affected systems running h2oai/h2o-3 and apply vendor patches promptly. Monitor vendor channels for patch availability.

H2O CVE-2024-8616

HIGH

External Control of File Name or Path (CWE-73)

2025-03-20 security@huntr.dev

Information Disclosure H2O

8.2

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

8.2 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:32 vuln.today

PoC Detected

Jul 15, 2025 - 15:49 vuln.today

Public exploit code

CVE Published

Mar 20, 2025 - 10:15 nvd

HIGH 8.2

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

9 maven packages depend on ai.h2o:h2o-core (9 direct, 0 indirect)

Ecosystem-wide dependent count for version 3.10.4.1.

DescriptionCVE.org

In h2oai/h2o-3 version 3.46.0, the /99/Models/{name}/json endpoint allows for arbitrary file overwrite on the target server. The vulnerability arises from the exportModelDetails function in ModelsHandler.java, where the user-controllable mexport.dir parameter is used to specify the file path for writing model details. This can lead to overwriting files at arbitrary locations on the host system.

AnalysisAI

In h2oai/h2o-3 version 3.46.0, the /99/Models/{name}/json endpoint allows for arbitrary file overwrite on the target server. Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-73. In h2oai/h2o-3 version 3.46.0, the /99/Models/{name}/json endpoint allows for arbitrary file overwrite on the target server. The vulnerability arises from the exportModelDetails function in ModelsHandler.java, where the user-controllable mexport.dir parameter is used to specify the file path for writing model details. This can lead to overwriting files at arbitrary locations on the host system. Affected products include: H2O. Version information: version 3.46.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.