CVE-2025-59464
7.5
HIGH
CVSS 3.1
EPSS 0.10%
Description
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, allowing remote clients to trigger steady memory growth through repeated TLS connections. Over time this can lead to resource exhaustion and denial of service.
How to fix CVE-2025-59464
To remediate CVE-2025-59464, upgrade the affected package to a fixed version below.
- —upgrade to 24.12.0 or later
- —upgrade to 24.12.0 or later
- —no fix listed
Is CVE-2025-59464 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- >= 24.0.0, < 24.12.0
- >= 24.0.0, < 24.12.0
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |