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CVE-2021-30577

Estado: ModificadaAlta (7.8)—

Una aplicación insuficiente de las políticas en Installer de Google Chrome anterior a versión 92.0.4515.107, permitía a un atacante remoto llevar a cabo una escalada de privilegios local por medio de un archivo diseñado

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-2021-30577",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
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          "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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          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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  "affected": [
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      "affectedData": [
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          "vendor": "Google",
          "product": "Chrome",
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  "published": "2021-08-03T20:15:08.977",
  "references": [
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      "url": "https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop_20.html",
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      "source": "chrome-cve-admin@google.com"
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient policy enforcement in Installer in Google Chrome prior to 92.0.4515.107 allowed a remote attacker to perform local privilege escalation via a crafted file."
    },
    {
      "lang": "es",
      "value": "Una aplicación insuficiente de las políticas en Installer de Google Chrome anterior a versión 92.0.4515.107, permitía a un atacante remoto llevar a cabo una escalada de privilegios local por medio de un archivo diseñado"
    }
  ],
  "lastModified": "2026-06-17T03:50:29.897",
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}