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CVE-2026-58289

Estado: AnalizadaAlta (8.3)—💥 Exploit

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized 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).

💥 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.

🎯 Técnicas ATT&CK

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

CVSS con UI:R (requiere interacción del usuario) en navegador apunta a T1203. CWE-843 (type confusion) en Edge permite RCE tras interacción del usuario con contenido malicioso (p. ej. sitio web). T1059 por ejecución de código arbitrario resultante.

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

Restrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or Program

Tecnologías afectadas (1)

Microsoft — Edge Chromium

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-58289",
  "cveTags": [],
  "metrics": {
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          "options": [
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            },
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            },
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            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-06T00:00:00+00:00"
        }
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          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 2.2
      },
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
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          "confidentialityImpact": "HIGH"
        },
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        "exploitabilityScore": 1.6
      }
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  },
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      "source": "secure@microsoft.com",
      "affectedData": [
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          "product": "Microsoft Edge (Chromium-based)",
          "versions": [
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              "version": "1.0.0.0",
              "lessThan": "150.0.4078.48",
              "versionType": "custom"
            }
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  ],
  "published": "2026-07-03T21:17:03.640",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58289",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
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          "lang": "en",
          "value": "CWE-843"
        }
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    }
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  "descriptions": [
    {
      "lang": "en",
      "value": "Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network."
    }
  ],
  "lastModified": "2026-07-07T12:40:04.297",
  "configurations": [
    {
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        {
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  "sourceIdentifier": "secure@microsoft.com"
}