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CVE-2016-7126

Estado: ModificadaCrítica (9.8)—

La función imagetruecolortopalette en ext/gd/gd.c en PHP en versiones anteriores a 5.6.25 y 7.x en versiones anteriores a 7.0.10 no valida adecuadamente el número de colores, lo que permite a atacantes remotos provocar una denegación de servicio (error de localización de colores de selección y escritura fuera de límites) o tener otro posible impacto no especificado a través de un valor largo en el tercer argumento.

CVSS

Probabilidad de explotación (EPSS)

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)

PHP — PHP

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-7126",
  "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,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/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": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-09-12T01:59:04.723",
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    },
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    {
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      "tags": [
        "Third Party Advisory"
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      "source": "cve@mitre.org"
    },
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      "url": "http://openwall.com/lists/oss-security/2016/09/02/9",
      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "tags": [
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    {
      "url": "http://www.php.net/ChangeLog-7.php",
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        "Issue Tracking"
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      "url": "https://github.com/php/php-src/commit/28022c9b1fd937436ab67bb3d61f652c108baf96",
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        "Vendor Advisory"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The imagetruecolortopalette function in ext/gd/gd.c in PHP before 5.6.25 and 7.x before 7.0.10 does not properly validate the number of colors, which allows remote attackers to cause a denial of service (select_colors allocation error and out-of-bounds write) or possibly have unspecified other impact via a large value in the third argument."
    },
    {
      "lang": "es",
      "value": "La función imagetruecolortopalette en ext/gd/gd.c en PHP en versiones anteriores a 5.6.25 y 7.x en versiones anteriores a 7.0.10 no valida adecuadamente el número de colores, lo que permite a atacantes remotos provocar una denegación de servicio (error de localización de colores de selección y escritura fuera de límites) o tener otro posible impacto no especificado a través de un valor largo en el tercer argumento."
    }
  ],
  "lastModified": "2026-06-17T00:52:38.150",
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