CVE-2006-7227

Estado: ModificadaMedia (6.8)—
Integer overflow in Perl-Compatible Regular Expression (PCRE) library before 6.7 allows context-dependent attackers to execute arbitrary code via a regular expression containing a large number of named subpatterns (name_count) or long subpattern names (max_name_size), which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.
CVSS

Versión: 2.0
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Puntuación base: 6.8
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 3.50%
Percentil entre todas las CVEs puntuadas: 89
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).
Tecnologías afectadas (1)

Pcre — Pcre
CWE

CWE-189
Referencias

JSON original (NVD)

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{
  "id": "CVE-2006-7227",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-11-14T21:46:00.000",
  "references": [
    {
      "url": "http://bugs.gentoo.org/show_bug.cgi?id=198976",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://scary.beasts.org/security/CESA-2007-006.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27582",
      "tags": [
        "Patch"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27741",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27773",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/27869",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/28406",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/28414",
      "source": "secalert@redhat.com"
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    {
      "url": "http://secunia.com/advisories/28658",
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    {
      "url": "http://secunia.com/advisories/28714",
      "source": "secalert@redhat.com"
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    {
      "url": "http://secunia.com/advisories/28720",
      "source": "secalert@redhat.com"
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    {
      "url": "http://secunia.com/advisories/30106",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/30155",
      "source": "secalert@redhat.com"
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    {
      "url": "http://secunia.com/advisories/30219",
      "source": "secalert@redhat.com"
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    {
      "url": "http://security.gentoo.org/glsa/glsa-200711-30.xml",
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    {
      "url": "http://security.gentoo.org/glsa/glsa-200801-02.xml",
      "source": "secalert@redhat.com"
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    {
      "url": "http://security.gentoo.org/glsa/glsa-200801-18.xml",
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    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-200801-19.xml",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-200805-11.xml",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://support.avaya.com/elmodocs2/security/ASA-2007-493.htm",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.debian.org/security/2008/dsa-1570",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:030",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.novell.com/linux/security/advisories/2007_62_pcre.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.pcre.org/changelog.txt",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-1052.html",
      "tags": [
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      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/26462",
      "source": "secalert@redhat.com"
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    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10408",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://bugs.gentoo.org/show_bug.cgi?id=198976",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://scary.beasts.org/security/CESA-2007-006.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27582",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27741",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27773",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/27869",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/28406",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/28414",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://secunia.com/advisories/28658",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/28714",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/28720",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://secunia.com/advisories/30106",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "http://security.gentoo.org/glsa/glsa-200711-30.xml",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "http://security.gentoo.org/glsa/glsa-200805-11.xml",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://support.avaya.com/elmodocs2/security/ASA-2007-493.htm",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2008/dsa-1570",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:030",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.novell.com/linux/security/advisories/2007_62_pcre.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.pcre.org/changelog.txt",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.redhat.com/support/errata/RHSA-2007-1052.html",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securityfocus.com/bid/26462",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10408",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer overflow in Perl-Compatible Regular Expression (PCRE) library before 6.7 allows context-dependent attackers to execute arbitrary code via a regular expression containing a large number of named subpatterns (name_count) or long subpattern names (max_name_size), which triggers a buffer overflow.  NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de entero en la librería Perl-Compatible Regular Expression (PCRE) anterior a 6.7 permite a atacantes locales o remotos (dependiendo del contexto) ejecutar código de su elección mediante una expresión regular que contiene un gran número de sobpatrones con nombre (name_count) o nombres de subpatrones largos (max_name_size), lo cual dispara un desbordamiento de búfer. NOTA: este problema fue incluido originalmente en CVE-2006-7224, pero ese CVE ha sido rechadazo y dividido."
    }
  ],
  "lastModified": "2026-06-16T22:34:36.970",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "03C81A67-7297-4B87-956F-D61E11FEB9F4",
              "versionEndIncluding": "6.6"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "secalert@redhat.com"
}