GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

FKIE_CVE-2025-24531

Vulnerability from fkie_nvd - Published: 2026-01-16 18:16 - Updated: 2026-06-17 08:59
Severity
6.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
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.
References
cve@mitre.orghttps://github.com/OpenSC/pam_pkcs11/releases
cve@mitre.orghttps://github.com/OpenSC/pam_pkcs11/security/advisories/GHSA-7mf6-rg36-qgch
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2025/02/06/3
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/02/06/3
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/02/06/7
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "pam_pkcs11",
          "vendor": "OpenSC project",
          "versions": [
            {
              "lessThan": "0.6.13",
              "status": "affected",
              "version": "0.6.12",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "En OpenSC pam_pkcs11 anterior a 0.6.13, pam_sm_authenticate() devuelve err\u00f3neamente PAM_IGNORE en muchas situaciones de error (como un error provocado por una tarjeta inteligente antes del inicio de sesi\u00f3n), lo que permite la omisi\u00f3n de autenticaci\u00f3n."
    }
  ],
  "id": "CVE-2025-24531",
  "lastModified": "2026-06-17T08:59:10.870",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.4,
        "impactScore": 5.2,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-24531",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-01-16T17:54:50.924042Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-01-16T18:16:06.817",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/OpenSC/pam_pkcs11/releases"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/OpenSC/pam_pkcs11/security/advisories/GHSA-7mf6-rg36-qgch"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.openwall.com/lists/oss-security/2025/02/06/3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/02/06/3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/02/06/7"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-393"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.