CVE-2025-6545

pbkdf2 silently returns predictable uninitialized/zero-filled memory for non-normalized or unimplemented algos supported by Node.js

Published Jun 23, 2025 CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-18922 pbkdf2 returns predictable uninitialized/zero-filled memory for non-normalized or unimplemented algos
Github GHSA Github GHSA GHSA-h7cp-r72f-jxh6 pbkdf2 returns predictable uninitialized/zero-filled memory for non-normalized or unimplemented algos
Ubuntu USN Ubuntu USN USN-8452-1 pbkdf2 vulnerability
History
Type Values Removed Values Added
First Time appeared Redhat
Redhat service Mesh
CPEs cpe:/a:redhat:service_mesh:3.0::el9
Vendors & Products Redhat
Redhat service Mesh
Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title pbkdf2 silently returns predictable uninitialized/zero-filled memory for non-normalized or unimplemented algos supported by Node.js
Weaknesses CWE-20
References
Metrics cvssV4_0

{'score': 9.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
harborist
Published
Updated
Jun 23, 2025, 7:26 PM
Reserved
Jun 23, 2025, 6:39 PM
Status
Deferred
Published
Jun 23, 2025, 7:15 PM
Modified
Jun 17, 2026, 10:02 AM
Severity
Important
Public date
Jun 23, 2025, 6:41 PM