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CVE-2021-30527

Estado: ModificadaAlta (8.8)—

Un uso de la memoria previamente liberada en WebUI en Google Chrome anterior a versión 91.0.4472.77, permitía a un atacante que convenciera a un usuario de instalar una extensión maliciosa explotar potencialmente una corrupción de la pila 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-2021-30527",
  "cveTags": [],
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
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  "affected": [
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      "affectedData": [
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  "published": "2021-06-07T20:15:08.523",
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use after free in WebUI in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page."
    },
    {
      "lang": "es",
      "value": "Un uso de la memoria previamente liberada en WebUI en Google Chrome anterior a versión 91.0.4472.77, permitía a un atacante que convenciera a un usuario de instalar una extensión maliciosa explotar potencialmente una corrupción de la pila por medio de una página HTML diseñada"
    }
  ],
  "lastModified": "2026-06-17T03:50:23.943",
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}