CVE-2016-7125

Estado: ModificadaAlta (7.5)—

ext/session/session.c en PHP en versiones anteriores a 5.6.25 y 7.x en versiones anteriores a 7.0.10 omite nombres de sesión no válidos de una manera que desencadena un análisis gramatical incorrecto, lo que permite a atacantes remotos inyectar datos de sesión de tipo arbitrario aprovechando el control de un nombre de sesión, según lo demostrado mediante la inyección de objetos.

CVSS

Versión: 3.0
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 5.78%
Percentil entre todas las CVEs puntuadas: 93
Fecha de la puntuación: 17/10/2026

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)

PHP — PHP

CWE

CWE-74

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-7125",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV30": [
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
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  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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  "published": "2016-09-12T01:59:03.427",
  "references": [
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      "tags": [
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      "tags": [
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      "source": "cve@mitre.org"
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    {
      "url": "https://security.gentoo.org/glsa/201611-22",
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    },
    {
      "url": "https://www.tenable.com/security/tns-2016-19",
      "source": "cve@mitre.org"
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    {
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      "url": "https://www.tenable.com/security/tns-2016-19",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-74"
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "ext/session/session.c in PHP before 5.6.25 and 7.x before 7.0.10 skips invalid session names in a way that triggers incorrect parsing, which allows remote attackers to inject arbitrary-type session data by leveraging control of a session name, as demonstrated by object injection."
    },
    {
      "lang": "es",
      "value": "ext/session/session.c en PHP en versiones anteriores a 5.6.25 y 7.x en versiones anteriores a 7.0.10 omite nombres de sesión no válidos de una manera que desencadena un análisis gramatical incorrecto, lo que permite a atacantes remotos inyectar datos de sesión de tipo arbitrario aprovechando el control de un nombre de sesión, según lo demostrado mediante la inyección de objetos."
    }
  ],
  "lastModified": "2026-06-17T00:52:37.997",
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