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CVE-2011-1528

Status: ModifiedHigh (7.8)—

The krb5_ldap_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors, related to the locked_check_p function. NOTE: the Berkeley DB vector is covered by CVE-2011-4151.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

MIT — Kerberos 5

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2011-1528",
  "cveTags": [],
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        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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  "published": "2011-10-20T21:55:00.920",
  "references": [
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2011-10/msg00009.html",
      "source": "cve@mitre.org"
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The krb5_ldap_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors, related to the locked_check_p function.  NOTE: the Berkeley DB vector is covered by CVE-2011-4151."
    },
    {
      "lang": "es",
      "value": "La función krb5_ldap_lockout_audit en el Key Distribution Center (KDC) en MIT Kerberos 5 (también se conoce como krb5) versión 1.8 hasta 1.8.4 y versión 1.9 hasta 1.9.1, cuando se utiliza el back-end LDAP, permite a los atacantes remotos causar una denegación de servicio (fallo de aserción y salida de demonio) por medio de vectores no especificados, relacionados con la función locked_check_p. NOTA: El vector Berkeley DB está cubierto por CVE-2011-4151."
    }
  ],
  "lastModified": "2026-06-16T23:29:33.650",
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}