How severe is CVE-2024-8062?

CVE-2024-8062 has a CVSS 3.x base score of 7.5, 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 none, and availability high.

Is CVE-2024-8062 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-8062?

CVE-2024-8062 affects H2o. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-8062?

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-2024-8062 have an EU (EUVD) identifier?

Yes. CVE-2024-8062 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6929.

When was CVE-2024-8062 published?

CVE-2024-8062 was published on 2025-03-20 and last updated on 2026-06-17.

CVE-2024-8062

CVE-2024-8062 is a high-severity vulnerability in H2o with a CVSS 3.x base score of 7.5. 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-1088.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-6929
Weakness: CWE-1088
Affected product: H2o
Published: 2025-03-20
Last modified: 2026-06-17

Description

A vulnerability in the typeahead endpoint of h2oai/h2o-3 version 3.46.0 allows for a denial of service. The endpoint performs a `HEAD` request to verify the existence of a specified resource without setting a timeout. An attacker can exploit this by sending multiple requests to an attacker-controlled server that hangs, causing the application to block and become unresponsive to other requests.

Frequently asked questions

What is CVE-2024-8062?: A vulnerability in the typeahead endpoint of h2oai/h2o-3 version 3.46.0 allows for a denial of service. The endpoint performs a `HEAD` request to verify the existence of a specified resource without setting a timeout. An attacker can exploit this by sending multiple requests to an attacker-controlled server that hangs, causing the application to block and become unresponsive to other requests.
How severe is CVE-2024-8062?: CVE-2024-8062 has a CVSS 3.x base score of 7.5, 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 none, and availability high.
Is CVE-2024-8062 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-8062?: CVE-2024-8062 affects H2o. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-8062?: 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-2024-8062 have an EU (EUVD) identifier?: Yes. CVE-2024-8062 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6929.
When was CVE-2024-8062 published?: CVE-2024-8062 was published on 2025-03-20 and last updated on 2026-06-17.

References

https://huntr.com/bounties/a04190d9-4acb-449a-9a7f-f1bf6be1ed23

Affected products (1)

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

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