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CVE-2021-30528

Estado: ModificadaAlta (8.8)—

Un uso de la memoria previamente liberada en WebAuthentication en Google Chrome en Android anterior a versión 91.0.4472.77, permitía a un atacante remoto que ha comprometido el proceso de renderización de un usuario que ha guardado una tarjeta de crédito en su cuenta de Google 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-2021-30528",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
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          "version": "2.0",
          "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,
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          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "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",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
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  },
  "affected": [
    {
      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "Google",
          "product": "Chrome",
          "versions": [
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              "status": "affected",
              "version": "unspecified",
              "lessThan": "91.0.4472.77",
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  "published": "2021-06-07T20:15:08.553",
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      "url": "http://packetstormsecurity.com/files/172844/Chrome-Sandbox-Escape.html",
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    },
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      "url": "https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html",
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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"
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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-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use after free in WebAuthentication in Google Chrome on Android prior to 91.0.4472.77 allowed a remote attacker who had compromised the renderer process of a user who had saved a credit card in their Google account to potentially exploit heap corruption via a crafted HTML page."
    },
    {
      "lang": "es",
      "value": "Un uso de la memoria previamente liberada en WebAuthentication en Google Chrome en Android anterior a versión 91.0.4472.77, permitía a un atacante remoto que ha comprometido el proceso de renderización de un usuario que ha guardado una tarjeta de crédito en su cuenta de Google explotar potencialmente una corrupción de la pila por medio de una página HTML diseñada"
    }
  ],
  "lastModified": "2026-06-17T03:50:24.060",
  "configurations": [
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}