CVE-2025-6545

CRITICALNVD 9.1Elevated

9.1

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.

CVSS v3: 9.1
EG Score: 0.0(none)
EPSS: 62.0%
KEV: Not listed

Published

June 23, 2025

Last Modified

April 15, 2026

References (3)

7ffcee3d-2c14-4c3e-b844-86c6a321a158https://github.com/browserify/pbkdf2/commit/9699045c37a07f8319cfb8d44e2ff4252d7a7078
7ffcee3d-2c14-4c3e-b844-86c6a321a158https://github.com/browserify/pbkdf2/commit/e3102a8cd4830a3ac85cd0dd011cc002fdde33bb
7ffcee3d-2c14-4c3e-b844-86c6a321a158https://github.com/browserify/pbkdf2/security/advisories/GHSA-h7cp-r72f-jxh6

Vendor Advisories for CVE-2025-6545(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(5)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	openshift-pipelines/pipelines-hub-ui-rhel8:1772036471	2026-03-04	redhat
redhat	openshift-pipelines/pipelines-hub-db-migration-rhel9:v1.19.4-1764819005	2025-12-09	redhat
redhat	rhtas/rekor-search-ui-rhel9:1.2.1-1755456740	2025-08-25	redhat
redhat	rhdh/rhdh-hub-rhel9:1.7.0-1754936470	2025-08-19	redhat
redhat	openshift-service-mesh/kiali-ossmc-rhel9:2.4.7-1751549390	2025-07-09	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

npm(1)

Package	Vulnerable range	Fixed in	Dependents
pbkdf2	—	3.1.3	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-20Improper Input Validation

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-03 03:10 UTCOSV refresh
2026-06-02 20:13 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-6545?

CVE-2025-6545 is a critical vulnerability published on June 23, 2025. 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.

When was CVE-2025-6545 disclosed?

CVE-2025-6545 was first published in the National Vulnerability Database on June 23, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-6545 actively exploited?

CVE-2025-6545 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-6545?

CVE-2025-6545 has a CVSS v3 base score of 9.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.

How do I remediate CVE-2025-6545?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-6545, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-6545

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