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CVE-2018-6176

Estado: ModificadaAlta (7.8)—

La aplicación insuficiente del tipo de archivo en la API de Extensions en Google Chrome antes de 68.0.3440.75 permitió que un atacante remoto que había comprometido el proceso del renderizador realizara una escalada de privilegios a través de una extensión de Chrome diseñada.

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)

Google — Chrome

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-6176",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/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": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "Google",
          "product": "Chrome",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "68.0.3440.75",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-06-27T17:15:13.490",
  "references": [
    {
      "url": "https://chromereleases.googleblog.com/2018/07/stable-channel-update-for-desktop.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://crbug.com/666824",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://chromereleases.googleblog.com/2018/07/stable-channel-update-for-desktop.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://crbug.com/666824",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient file type enforcement in Extensions API in Google Chrome prior to 68.0.3440.75 allowed a remote attacker who had compromised the renderer process to perform privilege escalation via a crafted Chrome Extension."
    },
    {
      "lang": "es",
      "value": "La aplicación insuficiente del tipo de archivo en la API de Extensions en Google Chrome antes de 68.0.3440.75 permitió que un atacante remoto que había comprometido el proceso del renderizador realizara una escalada de privilegios a través de una extensión de Chrome diseñada."
    }
  ],
  "lastModified": "2026-06-17T02:01:27.643",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CBE6E6EC-3F0E-4FAD-9EC6-16742B562589",
              "versionEndExcluding": "68.0.3440.75"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "chrome-cve-admin@google.com"
}