CVE-2015-6831

Estado: ModificadaAlta (7.3)—
Gravedad7.3Alta · CVSS 3.1
Probabilidad de explotación7.06 %mayor que el 94 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

Múltiples vulnerabilidades de uso después de liberación de memoria en SPL en PHP en versiones anteriores a 5.4.44, 5.5.x en versiones anteriores a 5.5.28 y 5.6.x en versiones anteriores a 5.6.12 permiten a atacantes remotos ejecutar código arbitrario involucrando vectores (1) ArrayObject, (2) SplObjectStorage y (3) SplDoublyLinkedList, los cuales no son manejados adecuadamente durante la deserialización.

CVSS

Puntuación base
7.3
Versión
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
7.06 %
Percentil entre todas las CVEs puntuadas
94
Fecha de la puntuación
21/10/2026

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)

CWE

Referencias

Mostrar las 18 referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2015-6831",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "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,
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        "obtainAllPrivilege": false,
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        "obtainOtherPrivilege": false
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    "cvssMetricV31": [
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        "cvssData": {
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@opentext.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
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  ],
  "published": "2016-01-19T05:59:02.637",
  "references": [
    {
      "url": "http://www.debian.org/security/2015/dsa-3344",
      "source": "security@opentext.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2015/08/19/3",
      "source": "security@opentext.com"
    },
    {
      "url": "http://www.php.net/ChangeLog-5.php",
      "source": "security@opentext.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/76737",
      "source": "security@opentext.com"
    },
    {
      "url": "https://bugs.php.net/bug.php?id=70155",
      "source": "security@opentext.com"
    },
    {
      "url": "https://bugs.php.net/bug.php?id=70166",
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    {
      "url": "https://bugs.php.net/bug.php?id=70168",
      "source": "security@opentext.com"
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    {
      "url": "https://bugs.php.net/bug.php?id=70169",
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    },
    {
      "url": "https://security.gentoo.org/glsa/201606-10",
      "source": "security@opentext.com"
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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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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      "url": "https://bugs.php.net/bug.php?id=70169",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://security.gentoo.org/glsa/201606-10",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "Multiple use-after-free vulnerabilities in SPL in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 allow remote attackers to execute arbitrary code via vectors involving (1) ArrayObject, (2) SplObjectStorage, and (3) SplDoublyLinkedList, which are mishandled during unserialization."
    },
    {
      "lang": "es",
      "value": "Múltiples vulnerabilidades de uso después de liberación de memoria en SPL en PHP en versiones anteriores a 5.4.44, 5.5.x en versiones anteriores a 5.5.28 y 5.6.x en versiones anteriores a 5.6.12 permiten a atacantes remotos ejecutar código arbitrario involucrando vectores (1) ArrayObject, (2) SplObjectStorage y (3) SplDoublyLinkedList, los cuales no son manejados adecuadamente durante la deserialización."
    }
  ],
  "lastModified": "2026-06-17T00:31:29.833",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
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  "sourceIdentifier": "security@opentext.com"
}