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CVE-2026-58558

Estado: AplazadaAlta (7.8)—

Permission control vulnerability in the file system. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

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.

Vector local con interacción del usuario (UI:R) apunta a T1203 (ejecución en cliente). Vulnerabilidad de control de permisos en FS (CWE-840) permite lectura/modificación de datos con impacto CIA alto.

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 File and Directory PermissionsRemote Data StorageNetwork SegmentationEncrypt Sensitive InformationApplication Isolation and SandboxingExploit Protection

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-58558",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-58558",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-15T13:03:47.160264Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@huawei.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/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": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@huawei.com",
      "affectedData": [
        {
          "vendor": "Huawei",
          "product": "Harmony OS",
          "versions": [
            {
              "status": "affected",
              "version": "4.3.1"
            },
            {
              "status": "affected",
              "version": "4.3.0"
            },
            {
              "status": "affected",
              "version": "4.2.0"
            },
            {
              "status": "affected",
              "version": "4.0.0"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Huawei",
          "product": "EMUI",
          "versions": [
            {
              "status": "affected",
              "version": "15.0.0"
            },
            {
              "status": "affected",
              "version": "14.2.0"
            },
            {
              "status": "affected",
              "version": "14.0.0"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-07-15T13:17:31.053",
  "references": [
    {
      "url": "https://consumer.huawei.com/en/support/bulletin/2026/7/",
      "source": "psirt@huawei.com"
    },
    {
      "url": "https://consumer.huawei.com/en/support/bulletinvision/2026/7/",
      "source": "psirt@huawei.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@huawei.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-840"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Permission control vulnerability in the file system. Impact: Successful exploitation of this vulnerability may affect service confidentiality."
    }
  ],
  "lastModified": "2026-07-15T16:24:31.140",
  "sourceIdentifier": "psirt@huawei.com"
}