« Volver al listado

CVE-2026-34853

Estado: AnalizadaAlta (7.5)—

Permission bypass vulnerability in the LBS module. Impact: Successful exploitation of this vulnerability may affect availability.

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.

AV:N, PR:N, UI:N indica explotación remota sin privilegios (T1190). CWE-270 (permisos insuficientes) + A:H apunta a denegación de servicio remoto (T1499).

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

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (2)

Huawei — EmuiHuawei — Harmonyos

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-34853",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-34853",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-13T15:01:59.538807Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@huawei.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.7,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 1.1
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@huawei.com",
      "affectedData": [
        {
          "vendor": "Huawei",
          "product": "HarmonyOS",
          "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": "2026-04-13T04:16:12.217",
  "references": [
    {
      "url": "https://consumer.huawei.com/en/support/bulletin/2026/4/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@huawei.com"
    },
    {
      "url": "https://consumer.huawei.com/en/support/bulletinvision/2026/4/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@huawei.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@huawei.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-270"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Permission bypass vulnerability in the LBS module.\nImpact: Successful exploitation of this vulnerability may affect availability."
    }
  ],
  "lastModified": "2026-06-17T10:39:44.307",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:huawei:harmonyos:4.0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8198CDB2-4BC5-411A-8736-615A531FC545"
            },
            {
              "criteria": "cpe:2.3:o:huawei:harmonyos:4.2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2401DE15-9DBF-4645-A261-8C24D57C6342"
            },
            {
              "criteria": "cpe:2.3:o:huawei:harmonyos:4.3.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "082BBC06-A0B2-481E-BF6F-56180E17ABEF"
            },
            {
              "criteria": "cpe:2.3:o:huawei:harmonyos:4.3.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6EA69843-EC8D-42E2-900E-017D2B502E9E"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:huawei:emui:14.0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "32FBF39A-164F-4F98-AB49-28C50A430C36"
            },
            {
              "criteria": "cpe:2.3:o:huawei:emui:14.2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4AA76C33-8D23-490B-B620-C24EDCC86A56"
            },
            {
              "criteria": "cpe:2.3:o:huawei:emui:15.0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "888C5BD7-421B-4A85-8719-BFEE3C215527"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@huawei.com"
}