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CVE-2021-30571

Estado: ModificadaCrítica (9.6)—

Una aplicación insuficiente de políticas en DevTools en Google Chrome anterior a versión 92.0.4515.107, permitía que un atacante que convencía a un usuario de instalar una extensión maliciosa pudiera potencialmente llevar a cabo un escape de la sandbox por medio de una página HTML 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 (2)

Fedoraproject — FedoraGoogle — Chrome

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-30571",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9.6,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2.8
      }
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  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "Google",
          "product": "Chrome",
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  "published": "2021-08-03T20:15:08.743",
  "references": [
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      "url": "https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop_20.html",
      "tags": [
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      "source": "chrome-cve-admin@google.com"
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        "Permissions Required",
        "Third Party Advisory"
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      "source": "chrome-cve-admin@google.com"
    },
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      "source": "chrome-cve-admin@google.com"
    },
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      "source": "chrome-cve-admin@google.com"
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      "source": "chrome-cve-admin@google.com"
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    },
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QW4R2K5HVJ4R6XDZYOJCCFPIN2XHNS3L/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient policy enforcement in DevTools in Google Chrome prior to 92.0.4515.107 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted HTML page."
    },
    {
      "lang": "es",
      "value": "Una aplicación insuficiente de políticas en DevTools en Google Chrome anterior a versión 92.0.4515.107, permitía que un atacante que convencía a un usuario de instalar una extensión maliciosa pudiera potencialmente llevar a cabo un escape de la sandbox por medio de una página HTML diseñada"
    }
  ],
  "lastModified": "2026-06-17T03:50:29.197",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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}