Is CVE-2024-10549 in the CISA KEV catalog?

No. CVE-2024-10549 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-10549?

CVE-2024-10549 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2024-10549?

CVE-2024-10549 has an EPSS score of 0.59% (43th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2024-10549

HIGH

7.5

CVSS v3

NVD

Description

A vulnerability in the `/3/Parse` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. The endpoint uses a user-specified string to construct a regular expression, which is then applied to another user-specified string. By sending multiple simultaneous requests, an attacker can exhaust all available threads, leading to a complete denial of service.

CWE-1333

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.59%probability of exploitation in 30 days

43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

https://huntr.com/bounties/ce7bd2d6-fd38-440d-a91a-dd8f3fc06bc2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-15.