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CVE-2022-31626

Estado: ModificadaAlta (8.8)—💥 PoC

En PHP versiones 7.4.x anteriores a 7.4.30, 8.0.x anteriores a 8.0.20 y 8.1.x anteriores a 8.1.7, cuando la extensión pdo_mysql con el controlador mysqlnd, si es permitido que el tercero suministre el host al que conectarse y la contraseña para la conexión, la contraseña de longitud excesiva puede desencadenar un desbordamiento de búfer en PHP, lo que puede conllevar a una vulnerabilidad de ejecución de código remota

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (2)

Debian — Debian LinuxPHP — PHP

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2022-31626",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@php.net",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.6
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@php.net",
      "affectedData": [
        {
          "vendor": "PHP Group",
          "product": "PHP",
          "versions": [
            {
              "status": "affected",
              "version": "7.4.X",
              "lessThan": "7.4.30",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "8.0.X",
              "lessThan": "8.0.20",
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              "status": "affected",
              "version": "8.1.X",
              "lessThan": "8.1.7",
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          ]
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      ]
    }
  ],
  "published": "2022-06-16T06:15:08.807",
  "references": [
    {
      "url": "https://bugs.php.net/bug.php?id=81719",
      "tags": [
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        "Issue Tracking",
        "Mailing List",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "security@php.net"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00030.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
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      "source": "security@php.net"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T4MMEEZYYAEHPQMZDFN44PHORJWJFZQ/",
      "source": "security@php.net"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZZTZQKRGEYJT5UB4FGG3MOE72SQUHSL4/",
      "source": "security@php.net"
    },
    {
      "url": "https://security.gentoo.org/glsa/202209-20",
      "tags": [
        "Third Party Advisory"
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      "source": "security@php.net"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20220722-0005/",
      "tags": [
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      "source": "security@php.net"
    },
    {
      "url": "https://www.debian.org/security/2022/dsa-5179",
      "tags": [
        "Third Party Advisory"
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      "source": "security@php.net"
    },
    {
      "url": "https://bugs.php.net/bug.php?id=81719",
      "tags": [
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        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T4MMEEZYYAEHPQMZDFN44PHORJWJFZQ/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZZTZQKRGEYJT5UB4FGG3MOE72SQUHSL4/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/202209-20",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20220722-0005/",
      "tags": [
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@php.net",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, when pdo_mysql extension with mysqlnd driver, if the third party is allowed to supply host to connect to and the password for the connection, password of excessive length can trigger a buffer overflow in PHP, which can lead to a remote code execution vulnerability."
    },
    {
      "lang": "es",
      "value": "En PHP versiones 7.4.x anteriores a 7.4.30, 8.0.x anteriores a 8.0.20 y 8.1.x anteriores a 8.1.7, cuando la extensión pdo_mysql con el controlador mysqlnd, si es permitido que el tercero suministre el host al que conectarse y la contraseña para la conexión, la contraseña de longitud excesiva puede desencadenar un desbordamiento de búfer en PHP, lo que puede conllevar a una vulnerabilidad de ejecución de código remota"
    }
  ],
  "lastModified": "2026-06-17T04:45:50.047",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "978FBB35-7734-45B2-9400-25DF82F5D207",
              "versionEndExcluding": "7.4.30",
              "versionStartIncluding": "7.4.0"
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5107CDF9-45B3-4553-B560-146921D77F9C",
              "versionEndExcluding": "8.0.20",
              "versionStartIncluding": "8.0.0"
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1B060E29-B7F6-4C52-B958-F77218669AFF",
              "versionEndExcluding": "8.1.7",
              "versionStartIncluding": "8.1.0"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
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              "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"
            },
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              "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
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  "sourceIdentifier": "security@php.net"
}