CVE-2025-24531

MEDIUMNVD 6.76.7—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.7 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 100% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.7Exploit: NoneExposed: 0

A fix is available — apply it.

In OpenSC pam_pkcs11 before 0.6.13, pam_sm_authenticate() wrongly returns PAM_IGNORE in many error situations (such as an error triggered by a smartcard before login), allowing authentication bypass.

CVSS v3
6.7
EG Score
6.7(medium)
EG Risk
—
EPSS
14.6%
KEV
Not listed

Published

January 16, 2026

Last Modified

April 15, 2026

References (5)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibpam-pkcs11 (0.6.12-2ubuntu0.24.10.1) @ oracular2026-05-21ubuntu

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.

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 10× in last 7d / 45× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 121 total refreshes for this CVE.

  1. 2026-07-22 14:07 UTCEPSS rescore
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
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  22. 2026-07-09 20:15 UTCOSV refresh
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  1. 2026-07-06 16:26 UTCEPSS rescore
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  23. 2026-06-21 14:56 UTCEPSS rescore
  24. 2026-06-21 14:56 UTCEPSS rescore
  25. 2026-06-21 05:41 UTCOSV refresh
  26. 2026-06-21 01:59 UTCEPSS rescore
  27. 2026-06-21 01:59 UTCEPSS rescore
  28. 2026-06-19 19:25 UTCEPSS rescore
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  30. 2026-06-18 17:52 UTCEPSS rescore
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  40. 2026-06-08 14:16 UTCEPSS rescore
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  42. 2026-06-07 15:24 UTCEPSS rescore
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  44. 2026-06-06 13:47 UTCEPSS rescore
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  46. 2026-06-05 22:46 UTCEPSS rescore
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  48. 2026-06-05 06:10 UTCEPSS rescore
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  50. 2026-06-04 13:11 UTCEPSS rescore
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  52. 2026-06-02 20:12 UTCEPSS rescore
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  54. 2026-06-01 18:27 UTCOSV refresh
  55. 2026-06-01 13:51 UTCEPSS rescore
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  75. 2026-05-26 07:18 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-24531?
CVE-2025-24531 is a medium vulnerability published on January 16, 2026. In OpenSC pampkcs11 before 0.6.13, pamsmauthenticate() wrongly returns PAMIGNORE in many error situations (such as an error triggered by a smartcard before login), allowing authentication bypass.
When was CVE-2025-24531 disclosed?
CVE-2025-24531 was first published in the National Vulnerability Database on January 16, 2026, 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-2025-24531 actively exploited?
CVE-2025-24531 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 14.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-24531?
CVE-2025-24531 has a CVSS v3 base score of 6.7 (NVD).
How do I remediate CVE-2025-24531?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-24531, 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.

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