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CVE-2021-30523

Estado: ModificadaAlta (8.8)—

Un uso de la memoria previamente liberada en WebRTC en Google Chrome anterior a versión 91.0.4472.77, permitía a un atacante remoto explotar potencialmente una corrupción de la pila por medio de un paquete SCTP 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-2021-30523",
  "cveTags": [],
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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",
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          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
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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:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
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      "affectedData": [
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  "published": "2021-06-07T20:15:08.420",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use after free in WebRTC in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to potentially exploit heap corruption via a crafted SCTP packet."
    },
    {
      "lang": "es",
      "value": "Un uso de la memoria previamente liberada en WebRTC en Google Chrome anterior a versión 91.0.4472.77, permitía a un atacante remoto explotar potencialmente una corrupción de la pila por medio de un paquete SCTP diseñado"
    }
  ],
  "lastModified": "2026-06-17T03:50:23.490",
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}