CVE-2025-59465

Node.Js vulnerability

CVSS

7.5

EPSS

3.8%

EPSS pct

89th

Exploited

No known

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 denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets, for example: ``` server.on('secureConnection', socket => { socket.on('error', err => { console.log(err) }) }) ```

Affected vendor

Nodejs

Affected product

Node.Js

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type (CWE)

CWE-400 — Uncontrolled Resource Consumption
CWE-248

Published

2026-01-20

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2025-59465

Confirm whether Nodejs Node.Js is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2025-59465.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-59465

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2025-59465 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2025-59465?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2025-59465.

Start free scan

No credit card. Agentless.

Related vulnerabilities

HIGH

CVE-2019-7093

Creative Cloud vulnerability

Libcurl vulnerability