How severe is CVE-2024-8616?

CVE-2024-8616 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2024-8616 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-8616?

CVE-2024-8616 affects H2o. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-8616?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-8616 have an EU (EUVD) identifier?

Yes. CVE-2024-8616 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6902.

When was CVE-2024-8616 published?

CVE-2024-8616 was published on 2025-03-20 and last updated on 2026-06-17.

CVE-2024-8616

CVE-2024-8616 is a high-severity vulnerability in H2o with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-73.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-6902
Weakness: CWE-73
Affected product: H2o
Published: 2025-03-20
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2024-8616?: 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.
How severe is CVE-2024-8616?: CVE-2024-8616 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2024-8616 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-8616?: CVE-2024-8616 affects H2o. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-8616?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-8616 have an EU (EUVD) identifier?: Yes. CVE-2024-8616 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6902.
When was CVE-2024-8616 published?: CVE-2024-8616 was published on 2025-03-20 and last updated on 2026-06-17.

References

https://huntr.com/bounties/aebf69a5-b9b1-4d2f-a8ff-902c11a8c97a

Affected products (1)

cpe:2.3:a:h2o:h2o:3.46.0:*:*:*:*:*:*:*

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