CVE-2025-6545
pbkdf2 returns predictable uninitialized/zero-filled memory for non-normalized or unimplemented algos
EPSS 0.42%
Description
Improper Input Validation vulnerability in pbkdf2 allows Signature Spoofing by Improper Validation. This vulnerability is associated with program files lib/to-buffer.Js. This issue affects pbkdf2: from 3.0.10 through 3.1.2.
How to fix CVE-2025-6545
To remediate CVE-2025-6545, upgrade the affected package to a fixed version below.
- Debian/node-pbkdf2—no fix listed
- npm/pbkdf2—upgrade to 3.1.3 or later
Is CVE-2025-6545 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- >= 3.0.10, < 3.1.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:H/SI:H/SA:H |