What is CVE-2025-59465?

CVE-2025-59465 is a high-severity vulnerability in Nodejs Node. CVSS score: 7.5/10. Published 2026-01-20.

How severe is CVE-2025-59465?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Nodejs Node

CVE-2025-59465

A malformed `HTTP/2 HEADERS` frame with oversized, invalid `HPACK` data can cause Node.js to crash by triggering an unhandled `TLSSocket` error `ECONNRESET`. Instead of safely closing the connection, the process crashes, enabling a remote…

EPSS: 0.001 (28.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Nodejs Node — versions 20.19.6, 22.21.1, 24.12.0

References

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

Frequently asked questions

What is CVE-2025-59465?: CVE-2025-59465 is a high-severity vulnerability in Nodejs Node. CVSS score: 7.5/10. Published 2026-01-20.
How severe is CVE-2025-59465?: High severity. CVSS v3 base score is 7.5 out of 10.