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CVE-2026-70341

Estado: AnalizadaAlta (8.8)—

Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Use-after-free en Edge requiere PR:L (atacante autorizado) y AV:N, indicando explotación de servicio remoto (T1210). La ejecución de código y contexto remoto con cambio de scope implica potencial escalada de privilegios.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (2)

CWE

Referencias

JSON original (NVD)

Mostrar
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  "cveTags": [],
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
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              "technicalImpact": "total"
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          "timestamp": "2026-09-12T03:55:42.747889Z"
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          "userInteraction": "NONE",
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  "published": "2026-09-11T16:17:46.080",
  "references": [
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      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70341",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
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      "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 Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network."
    }
  ],
  "lastModified": "2026-10-06T15:45:16.650",
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