What is CVE-2025-59464?

CVE-2025-59464 is a medium-severity vulnerability in Nodejs Node. CVSS score: 6.5/10. Published 2026-01-20.

How severe is CVE-2025-59464?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Nodejs Node

CVE-2025-59464

A memory leak in Node.js’s OpenSSL integration occurs when converting `X.509` certificate fields to UTF-8 without freeing the allocated buffer. When applications call `socket.getPeerCertificate(true)`, each certificate field leaks memory…

EPSS: 0.001 (27.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Nodejs Node — versions 24.12.0

References

nodejs.org/en/blog/vulnerability/december-2025-security-releases

Frequently asked questions

What is CVE-2025-59464?: CVE-2025-59464 is a medium-severity vulnerability in Nodejs Node. CVSS score: 6.5/10. Published 2026-01-20.
How severe is CVE-2025-59464?: Medium severity. CVSS v3 base score is 6.5 out of 10.