Vulnerability in Everest Libocpp

CVE-2025-59399

libocpp before 0.28.0 allows a denial of service (EVerest crash) because a secondary exception is thrown during error message generation.

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.002 (6.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-59399: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-59399?
CVE-2025-59399 is a low-severity vulnerability in Everest Libocpp, classified under CWE-460. CVSS score: 3.1/10. Published 2025-09-15.
How severe is CVE-2025-59399?
Low severity. CVSS v3 base score is 3.1 out of 10.
Is CVE-2025-59399 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.