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CVE-2021-21110

Estado: ModificadaCrítica (9.6)—💥 PoC

Un uso de la memoria previamente liberada en safe browsing en Google Chrome versiones anteriores a 87.0.4280.141, permitió a un atacante remoto 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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (3)

Debian — Debian LinuxFedoraproject — FedoraGoogle — Chrome

CWE

Referencias

JSON original (NVD)

Mostrar
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
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      "affectedData": [
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      "value": "Use after free in safe browsing in Google Chrome prior to 87.0.4280.141 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page."
    },
    {
      "lang": "es",
      "value": "Un uso de la memoria previamente liberada en safe browsing en Google Chrome versiones anteriores a 87.0.4280.141, permitió a un atacante remoto llevar a cabo potencialmente un escape del sandbox por medio de una página HTML diseñada"
    }
  ],
  "lastModified": "2026-06-17T03:34:50.867",
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}