CVE-2007-2926

Estado: ModificadaMedia (4.3)—💥 Exploit
ISC BIND 9 through 9.5.0a5 uses a weak random number generator during generation of DNS query ids when answering resolver questions or sending NOTIFY messages to slave name servers, which makes it easier for remote attackers to guess the next query id and perform DNS cache poisoning.
CVSS

Versión: 2.0
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Puntuación base: 4.3
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 13%
Percentil entre todas las CVEs puntuadas: 96
Fecha de la puntuación: 7/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.
Publicado en Exploit-DB · BIND 9 0.3beta - DNS Cache Poisoning (7/8/2007)
Tecnologías afectadas (1)

ISC — Bind
CWE

NVD-CWE-Other
Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2007-2926",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-07-24T17:30:00.000",
  "references": [
    {
      "url": "ftp://aix.software.ibm.com/aix/efixes/security/README",
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    },
    {
      "url": "ftp://patches.sgi.com/support/free/security/advisories/20070801-01-P.asc",
      "source": "cret@cert.org"
    },
    {
      "url": "http://docs.info.apple.com/article.html?artnum=307041",
      "source": "cret@cert.org"
    },
    {
      "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01123426",
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    },
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      "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01154600",
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    },
    {
      "url": "http://lists.apple.com/archives/security-announce/2007/Nov/msg00002.html",
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      "url": "http://marc.info/?l=bugtraq&m=141879471518471&w=2",
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    {
      "url": "http://secunia.com/advisories/26148",
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    {
      "url": "http://secunia.com/advisories/26152",
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    {
      "url": "http://secunia.com/advisories/26330",
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    {
      "url": "http://secunia.com/advisories/26509",
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    {
      "url": "http://secunia.com/advisories/26515",
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    {
      "url": "http://secunia.com/advisories/26531",
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    {
      "url": "http://secunia.com/advisories/26605",
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    {
      "url": "http://secunia.com/advisories/26607",
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      "url": "http://security.freebsd.org/advisories/FreeBSD-SA-07:07.bind.asc",
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      "url": "http://support.avaya.com/elmodocs2/security/ASA-2007-389.htm",
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    {
      "url": "http://www.isc.org/index.pl?/sw/bind/bind-security.php",
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    {
      "url": "http://www.kb.cert.org/vuls/id/252735",
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    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:149",
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      "url": "http://www.trusteer.com/docs/bind9dns_s.html",
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    {
      "url": "http://www.trustix.org/errata/2007/0023/",
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    {
      "url": "http://www.ubuntu.com/usn/usn-491-1",
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    {
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      "url": "http://www.vupen.com/english/advisories/2007/2627",
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      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/35575",
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      "url": "http://secunia.com/advisories/26152",
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      "url": "http://secunia.com/advisories/26217",
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      "url": "http://secunia.com/advisories/26227",
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      "url": "http://secunia.com/advisories/26231",
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      "url": "http://secunia.com/advisories/26236",
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      "url": "http://www.securityfocus.com/archive/1/474545/100/0/threaded",
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      "url": "http://www.securityfocus.com/bid/25037",
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      "url": "http://www.securityfocus.com/bid/26444",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "http://www.securitytracker.com/id?1018442",
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    {
      "url": "http://www.slackware.org/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.521385",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.trusteer.com/docs/bind9dns.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.trusteer.com/docs/bind9dns_s.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.trustix.org/errata/2007/0023/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.ubuntu.com/usn/usn-491-1",
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    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA07-319A.html",
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    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/2932",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/3242",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/3868",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/35575",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://issues.rpath.com/browse/RPL-1587",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10293",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2226",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "ISC BIND 9 through 9.5.0a5 uses a weak random number generator during generation of DNS query ids when answering resolver questions or sending NOTIFY messages to slave name servers, which makes it easier for remote attackers to guess the next query id and perform DNS cache poisoning."
    },
    {
      "lang": "es",
      "value": "ISC BIND 9 hasta 9.5.0a5 utiliza un número aleatorio debil a lo largo de la generación de la consulta DNS ids cuando se responde la pregunta a resolver o enviando mensajes NOTIFY a servidores de nombre esclavos, lo cual hace más fácil para atacantes remotos para adivinar la siguiente consulta id y llevar a cabo envenenamientos de la cache DNS."
    }
  ],
  "lastModified": "2026-06-16T22:40:42.783",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C52373DC-3E05-424B-9C78-4092A75C75A0"
            },
            {
              "criteria": "cpe:2.3:a:isc:bind:9.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1861756C-CC81-4EAB-8427-57A3C62BFF96"
            },
            {
              "criteria": "cpe:2.3:a:isc:bind:9.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1F947835-8E96-4793-B81E-EEC103BF0CB3"
            },
            {
              "criteria": "cpe:2.3:a:isc:bind:9.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8FA93166-513D-40AA-9855-FC89060BA03C"
            },
            {
              "criteria": "cpe:2.3:a:isc:bind:9.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5C8B18D7-4D15-46A7-8013-E6267127A427"
            },
            {
              "criteria": "cpe:2.3:a:isc:bind:9.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9A944178-032B-4637-842D-BC6B227043A3"
            },
            {
              "criteria": "cpe:2.3:a:isc:bind:9.5.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "32CEF8AD-9EE7-4ADA-888E-883751962529"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "Updates are available for Red Hat Enterprise Linux 2.1, 3, 4, and 5 to correct this issue:\nhttp://rhn.redhat.com/errata/RHSA-2007-0740.html",
      "lastModified": "2008-03-28T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "cret@cert.org"
}