What is CVE-2025-59398?

CVE-2025-59398 is a low-severity vulnerability in Everest Libocpp, classified under CWE-392. CVSS score: 3.1/10. Published 2025-09-15.

How severe is CVE-2025-59398?

Low severity. CVSS v3 base score is 3.1 out of 10.

Is CVE-2025-59398 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Everest Libocpp

CVE-2025-59398

The OCPP implementation in libocpp before 0.26.2 allows a denial of service (EVerest crash) via JSON input larger than 255 characters, because a CiString<255> object is created with StringTooLarge set to Throw.

EPSS: 0.000 (8.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Everest Libocpp — versions 0

Weakness classification (CWE)

CWE-392

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

Frequently asked questions

What is CVE-2025-59398?: CVE-2025-59398 is a low-severity vulnerability in Everest Libocpp, classified under CWE-392. CVSS score: 3.1/10. Published 2025-09-15.
How severe is CVE-2025-59398?: Low severity. CVSS v3 base score is 3.1 out of 10.
Is CVE-2025-59398 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.