How severe is CVE-2024-8862?

CVE-2024-8862 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2024-8862 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-8862?

CVE-2024-8862 affects H2o. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-8862?

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-2024-8862 have an EU (EUVD) identifier?

Yes. CVE-2024-8862 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2782.

When was CVE-2024-8862 published?

CVE-2024-8862 was published on 2024-09-14 and last updated on 2026-06-17.

CVE-2024-8862

CVE-2024-8862 is a high-severity vulnerability in H2o with a CVSS 3.x base score of 7.3. 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-502.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
CVSS v4: 6.9
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-2782
Weakness: CWE-502
Affected product: H2o
Published: 2024-09-14
Last modified: 2026-06-17

Description

A vulnerability, which was classified as critical, has been found in h2oai h2o-3 3.46.0.4. This issue affects the function getConnectionSafe of the file /dtale/chart-data/1 of the component JDBC Connection Handler. The manipulation of the argument query leads to deserialization. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2024-8862?: A vulnerability, which was classified as critical, has been found in h2oai h2o-3 3.46.0.4. This issue affects the function getConnectionSafe of the file /dtale/chart-data/1 of the component JDBC Connection Handler. The manipulation of the argument query leads to deserialization. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2024-8862?: CVE-2024-8862 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2024-8862 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-8862?: CVE-2024-8862 affects H2o. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-8862?: 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-2024-8862 have an EU (EUVD) identifier?: Yes. CVE-2024-8862 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-2782.
When was CVE-2024-8862 published?: CVE-2024-8862 was published on 2024-09-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:h2o:h2o:3.46.0.4:*:*:*:*:*:*:*

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