CVE-2007-2926 (GCVE-0-2007-2926)

Vulnerability from cvelistv5 – Published: 2007-07-24 17:00 – Updated: 2024-08-07 13:57
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
  • n/a
References
URL Tags
http://support.avaya.com/elmodocs2/security/ASA-2… x_refsource_CONFIRM
http://www.trusteer.com/docs/bind9dns_s.html x_refsource_MISC
http://secunia.com/advisories/26231 third-party-advisoryx_refsource_SECUNIA
http://www.vupen.com/english/advisories/2007/2932 vdb-entryx_refsource_VUPEN
http://marc.info/?l=bugtraq&m=141879471518471&w=2 vendor-advisoryx_refsource_HP
http://secunia.com/advisories/26847 third-party-advisoryx_refsource_SECUNIA
http://www-1.ibm.com/support/search.wss?rs=0&q=IZ… vendor-advisoryx_refsource_AIXAPAR
http://www.vupen.com/english/advisories/2007/2914 vdb-entryx_refsource_VUPEN
http://www.redhat.com/support/errata/RHSA-2007-07… vendor-advisoryx_refsource_REDHAT
http://secunia.com/advisories/26217 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/26509 third-party-advisoryx_refsource_SECUNIA
http://h20000.www2.hp.com/bizsupport/TechSupport/… vendor-advisoryx_refsource_HP
http://www.securityfocus.com/bid/26444 vdb-entryx_refsource_BID
http://www.securiteam.com/securitynews/5VP0L0UM0A.html x_refsource_MISC
http://h20000.www2.hp.com/bizsupport/TechSupport/… vendor-advisoryx_refsource_HP
http://secunia.com/advisories/26605 third-party-advisoryx_refsource_SECUNIA
http://sunsolve.sun.com/search/document.do?assetk… vendor-advisoryx_refsource_SUNALERT
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://secunia.com/advisories/26607 third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/archive/1/474856/100… mailing-listx_refsource_BUGTRAQ
http://secunia.com/advisories/26148 third-party-advisoryx_refsource_SECUNIA
http://security.freebsd.org/advisories/FreeBSD-SA… vendor-advisoryx_refsource_FREEBSD
http://www.kb.cert.org/vuls/id/252735 third-party-advisoryx_refsource_CERT-VN
http://www.trusteer.com/docs/bind9dns.html x_refsource_MISC
http://secunia.com/advisories/26180 third-party-advisoryx_refsource_SECUNIA
http://www.gentoo.org/security/en/glsa/glsa-20070… vendor-advisoryx_refsource_GENTOO
http://secunia.com/advisories/26152 third-party-advisoryx_refsource_SECUNIA
http://www.trustix.org/errata/2007/0023/ vendor-advisoryx_refsource_TRUSTIX
http://support.nortel.com/go/main.jsp?cscat=BLTND… x_refsource_CONFIRM
http://www.slackware.org/security/viewer.php?l=sl… vendor-advisoryx_refsource_SLACKWARE
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://docs.info.apple.com/article.html?artnum=307041 x_refsource_CONFIRM
http://www.securityfocus.com/archive/1/474516/100… mailing-listx_refsource_BUGTRAQ
http://www.isc.org/index.pl?/sw/bind/bind-security.php x_refsource_CONFIRM
http://www-1.ibm.com/support/search.wss?rs=0&q=IZ… vendor-advisoryx_refsource_AIXAPAR
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://www.vupen.com/english/advisories/2007/2782 vdb-entryx_refsource_VUPEN
http://secunia.com/advisories/26227 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/26261 third-party-advisoryx_refsource_SECUNIA
http://www.vupen.com/english/advisories/2007/3868 vdb-entryx_refsource_VUPEN
http://www.securityfocus.com/bid/25037 vdb-entryx_refsource_BID
http://secunia.com/advisories/26515 third-party-advisoryx_refsource_SECUNIA
http://www.ubuntu.com/usn/usn-491-1 vendor-advisoryx_refsource_UBUNTU
http://secunia.com/advisories/26330 third-party-advisoryx_refsource_SECUNIA
https://issues.rpath.com/browse/RPL-1587 x_refsource_CONFIRM
http://h20000.www2.hp.com/bizsupport/TechSupport/… vendor-advisoryx_refsource_HP
http://www.securitytracker.com/id?1018442 vdb-entryx_refsource_SECTRACK
ftp://patches.sgi.com/support/free/security/advis… vendor-advisoryx_refsource_SGI
http://www.debian.org/security/2007/dsa-1341 vendor-advisoryx_refsource_DEBIAN
http://secunia.com/advisories/26308 third-party-advisoryx_refsource_SECUNIA
http://www.novell.com/linux/security/advisories/2… vendor-advisoryx_refsource_SUSE
http://www.vupen.com/english/advisories/2007/2627 vdb-entryx_refsource_VUPEN
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
http://secunia.com/advisories/27643 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/26236 third-party-advisoryx_refsource_SECUNIA
http://www.vupen.com/english/advisories/2007/2662 vdb-entryx_refsource_VUPEN
http://secunia.com/advisories/26195 third-party-advisoryx_refsource_SECUNIA
ftp://aix.software.ibm.com/aix/efixes/security/README x_refsource_CONFIRM
http://www.vupen.com/english/advisories/2007/3242 vdb-entryx_refsource_VUPEN
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
http://www.openpkg.com/security/advisories/OpenPK… vendor-advisoryx_refsource_OPENPKG
http://www.us-cert.gov/cas/techalerts/TA07-319A.html third-party-advisoryx_refsource_CERT
http://secunia.com/advisories/26925 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/26160 third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/archive/1/474545/100… mailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/archive/1/474808/100… mailing-listx_refsource_BUGTRAQ
http://secunia.com/advisories/26531 third-party-advisoryx_refsource_SECUNIA
Date Public
2007-07-24 00:00
Show details on NVD website

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              "refsource": "MANDRIVA",
              "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:149"
            },
            {
              "name": "26607",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/26607"
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            {
              "name": "20070727 Re: \"BIND 9 DNS Cache Poisoning\" by Amit Klein (Trusteer)",
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              "url": "http://www.securityfocus.com/archive/1/474856/100/0/threaded"
            },
            {
              "name": "26148",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/26148"
            },
            {
              "name": "FreeBSD-SA-07:07",
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              "url": "http://security.freebsd.org/advisories/FreeBSD-SA-07:07.bind.asc"
            },
            {
              "name": "VU#252735",
              "refsource": "CERT-VN",
              "url": "http://www.kb.cert.org/vuls/id/252735"
            },
            {
              "name": "http://www.trusteer.com/docs/bind9dns.html",
              "refsource": "MISC",
              "url": "http://www.trusteer.com/docs/bind9dns.html"
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            {
              "name": "26180",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/26180"
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            {
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              "url": "http://www.gentoo.org/security/en/glsa/glsa-200708-13.xml"
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            {
              "name": "26152",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/26152"
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            {
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              "url": "http://www.trustix.org/errata/2007/0023/"
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            },
            {
              "name": "SSA:2007-207-01",
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            },
            {
              "name": "http://docs.info.apple.com/article.html?artnum=307041",
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              "url": "http://docs.info.apple.com/article.html?artnum=307041"
            },
            {
              "name": "20070724 \"BIND 9 DNS Cache Poisoning\" by Amit Klein (Trusteer)",
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            {
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            {
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            },
            {
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              "url": "http://www.securityfocus.com/archive/1/474545/100/0/threaded"
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              "url": "http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01123426"
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              "name": "20070726 Re: \"BIND 9 DNS Cache Poisoning\" by Amit Klein (Trusteer)",
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              "url": "http://secunia.com/advisories/26531"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2007-2926",
    "datePublished": "2007-07-24T17:00:00.000Z",
    "dateReserved": "2007-05-30T00:00:00.000Z",
    "dateUpdated": "2024-08-07T13:57:54.738Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2007-2926",
      "date": "2026-09-23",
      "epss": "0.1309",
      "percentile": "0.96181"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C52373DC-3E05-424B-9C78-4092A75C75A0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:isc:bind:9.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "1861756C-CC81-4EAB-8427-57A3C62BFF96",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:isc:bind:9.2:*:*:*:*:*:*:*",
                  "matchCriteriaId": "1F947835-8E96-4793-B81E-EEC103BF0CB3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:isc:bind:9.3:*:*:*:*:*:*:*",
                  "matchCriteriaId": "8FA93166-513D-40AA-9855-FC89060BA03C",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:isc:bind:9.4:*:*:*:*:*:*:*",
                  "matchCriteriaId": "5C8B18D7-4D15-46A7-8013-E6267127A427",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:isc:bind:9.5:*:*:*:*:*:*:*",
                  "matchCriteriaId": "9A944178-032B-4637-842D-BC6B227043A3",
                  "vulnerable": true
                },
                {
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                  "matchCriteriaId": "32CEF8AD-9EE7-4ADA-888E-883751962529",
                  "vulnerable": true
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              ],
              "negate": false,
              "operator": "OR"
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          ]
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      ],
      "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 n\u00famero aleatorio debil a lo largo de la generaci\u00f3n de la consulta DNS ids cuando se responde la pregunta a resolver o enviando mensajes NOTIFY a servidores de nombre esclavos, lo cual hace m\u00e1s f\u00e1cil para atacantes remotos para adivinar la siguiente consulta id y llevar a cabo envenenamientos de la cache DNS."
        }
      ],
      "id": "CVE-2007-2926",
      "lastModified": "2024-11-21T00:31:59.083",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "MEDIUM",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "NONE",
              "baseScore": 4.3,
              "confidentialityImpact": "NONE",
              "integrityImpact": "PARTIAL",
              "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
              "version": "2.0"
            },
            "exploitabilityScore": 8.6,
            "impactScore": 2.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ]
      },
      "published": "2007-07-24T17:30:00.000",
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            "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 n\u00famero aleatorio debil a lo largo de la generaci\u00f3n de la consulta DNS ids cuando se responde la pregunta a resolver o enviando mensajes NOTIFY a servidores de nombre esclavos, lo cual hace m\u00e1s f\u00e1cil para atacantes remotos para adivinar la siguiente consulta id y llevar a cabo envenenamientos de la cache DNS."
          }
        ],
        "id": "CVE-2007-2926",
        "lastModified": "2026-04-23T00:35:47.467",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
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            "source": "cret@cert.org",
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            "source": "cret@cert.org",
            "url": "http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.022.html"
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            "source": "cret@cert.org",
            "url": "http://www.redhat.com/support/errata/RHSA-2007-0740.html"
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            "source": "cret@cert.org",
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            "source": "cret@cert.org",
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            "source": "cret@cert.org",
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            "source": "cret@cert.org",
            "url": "http://www.vupen.com/english/advisories/2007/2662"
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            "source": "cret@cert.org",
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            "url": "http://lists.apple.com/archives/security-announce/2007/Nov/msg00002.html"
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
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          },
          {
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            "url": "http://secunia.com/advisories/26160"
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            "url": "http://secunia.com/advisories/26180"
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            "url": "http://secunia.com/advisories/26195"
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            "url": "http://secunia.com/advisories/26217"
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          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/26227"
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            "url": "http://secunia.com/advisories/26231"
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            "url": "http://www.debian.org/security/2007/dsa-1341"
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          {
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            "url": "http://www.gentoo.org/security/en/glsa/glsa-200708-13.xml"
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.isc.org/index.pl?/sw/bind/bind-security.php"
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          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:149"
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "http://www.securiteam.com/securitynews/5VP0L0UM0A.html"
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/bid/26444"
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
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          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.slackware.org/security/viewer.php?l=slackware-security\u0026y=2007\u0026m=slackware-security.521385"
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          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.trusteer.com/docs/bind9dns_s.html"
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.vupen.com/english/advisories/2007/2627"
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            "url": "http://www.vupen.com/english/advisories/2007/2662"
          },
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
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          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
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          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
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          {
            "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"
          }
        ],
        "sourceIdentifier": "cret@cert.org",
        "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"
          }
        ],
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-Other"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:19:16+00:00",
      "cve": "CVE-2007-2926",
      "id": "CVE-2007-2926",
      "initial_release_date": "2007-07-23T00:00:00+00:00",
      "product_status:fixed": "494",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "bind cryptographically weak query ids",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2007/cve-2007-2926.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-23T23:57:17Z",
      "cve": "CVE-2007-2926",
      "id": "CVE-2007-2926",
      "initial_release_date": "2023-02-15T06:11:55Z",
      "product_status:recommended": "64",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2007-2926",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2007-2926.json",
      "version": "12"
    }
  }
}



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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.

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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.


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