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CVE-2021-21146

Estado: ModificadaCrítica (9.6)—

Un uso de la memoria previamente liberada en Navigation en Google Chrome versiones anteriores a 88.0.4324.146, permitía a un atacante remoto que había comprometido el proceso del renderizador llevar a cabo potencialmente un escape del 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-2021-21146",
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
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          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
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      "affectedData": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-416"
        }
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  "descriptions": [
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      "lang": "en",
      "value": "Use after free in Navigation in Google Chrome prior to 88.0.4324.146 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page."
    },
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      "lang": "es",
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    }
  ],
  "lastModified": "2026-06-17T03:34:54.630",
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}