CVE-2016-3191

Estado: ModificadaCrítica (9.8)—
The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c in PCRE2 before 10.22 mishandles patterns containing an (*ACCEPT) substring in conjunction with nested parentheses, which allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, aka ZDI-CAN-3542.
CVSS

Versión: 3.0
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 8.43%
Percentil entre todas las CVEs puntuadas: 95
Fecha de la puntuación: 3/10/2026
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 (2)

Pcre — Pcre Pcre — Pcre2
CWE

CWE-119
Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-3191",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@debian.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-03-17T23:59:01.447",
  "references": [
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-1025.html",
      "source": "security@debian.org"
    },
    {
      "url": "http://vcs.pcre.org/pcre2?view=revision&revision=489",
      "source": "security@debian.org"
    },
    {
      "url": "http://vcs.pcre.org/pcre?view=revision&revision=1631",
      "source": "security@debian.org"
    },
    {
      "url": "http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886",
      "source": "security@debian.org"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html",
      "source": "security@debian.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/84810",
      "source": "security@debian.org"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2016:1132",
      "source": "security@debian.org"
    },
    {
      "url": "https://bto.bluecoat.com/security-advisory/sa128",
      "source": "security@debian.org"
    },
    {
      "url": "https://bugs.debian.org/815920",
      "source": "security@debian.org"
    },
    {
      "url": "https://bugs.debian.org/815921",
      "source": "security@debian.org"
    },
    {
      "url": "https://bugs.exim.org/show_bug.cgi?id=1791",
      "tags": [
        "Exploit"
      ],
      "source": "security@debian.org"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1311503",
      "source": "security@debian.org"
    },
    {
      "url": "https://www.tenable.com/security/tns-2016-18",
      "source": "security@debian.org"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-1025.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://vcs.pcre.org/pcre2?view=revision&revision=489",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://vcs.pcre.org/pcre?view=revision&revision=1631",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/84810",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2016:1132",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bto.bluecoat.com/security-advisory/sa128",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.debian.org/815920",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.debian.org/815921",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.exim.org/show_bug.cgi?id=1791",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1311503",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.tenable.com/security/tns-2016-18",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c in PCRE2 before 10.22 mishandles patterns containing an (*ACCEPT) substring in conjunction with nested parentheses, which allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, aka ZDI-CAN-3542."
    },
    {
      "lang": "es",
      "value": "La función compile_branch en pcre_compile.c en PCRE 8.x en versiones anteriores a 8.39 y pcre2_compile.c en PCRE2 en versiones anteriores a 10.22 no maneja correctamente patrones que contienen una subcadena (*ACCEPT) en conjunción con paréntesis anidados, lo que permite a atacantes remotos ejecutar código arbitrario o provocar una denegación de servicio (desbordamiento de buffer basado en pila) a través de una expresión regular manipuada, según lo demostrado por un objeto JavaScript RegExp encontrado por Konqueror, también conocido como ZDI-CAN-3542."
    }
  ],
  "lastModified": "2026-06-17T00:45:16.357",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.00:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BE157F38-24DB-4B12-9964-F514A303C294"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.01:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D4F80172-754F-4FB1-9E84-F8EC1A6B0EEF"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.02:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C109C2A1-BF9D-48CB-A027-82F3F3FA261B"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.10:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B8A8DB81-0B55-4E50-A149-C1E82BDAD0C3"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.11:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B2D96300-9CEF-4F64-A76F-11B1AB312579"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.12:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "61D64759-714E-47D8-B578-CCE4B59086EE"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.13:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "ACC08805-B9FC-4D8B-B486-813E4398DBBD"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.20:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EFD12533-1D1E-4931-B687-CBC0A17DBF3F"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.21:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6B2768BD-07FF-4C8C-8370-E84AE8D0707A"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.30:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B5C9BE45-3F45-4F46-9C15-86AA2CD3F2E7"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.31:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FC0CD596-3719-425E-9327-8DEE38AB138B"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.32:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4CE5EE9A-0FA0-4851-8AF3-D884B88B2E52"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.33:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5A61CB8C-6504-4602-91A5-C1595C12F6AB"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.34:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F6876A94-2609-41CE-975E-F1ADAE1BD782"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.35:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9DA3CC4F-1797-46D8-8C3D-0605E71C5EAE"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.36:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "909CD13B-E836-4EBF-9433-55B4EFFE2DC4"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.37:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EF43E164-05C2-42A8-82CA-D1B643875C2B"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre:8.38:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9DD39B35-C14D-4044-A050-660FE4EE6AC2"
            },
            {
              "criteria": "cpe:2.3:a:pcre:pcre2:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4B739148-6299-4DD1-BDE5-608BDF01A44F",
              "versionEndIncluding": "10.21"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@debian.org"
}