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CVE-2018-7921

Estado: ModificadaMedia (6.5)—💥 Exploit

Los productos Huawei B315s-22 con software 21.318.01.00.26 tienen una vulnerabilidad de fuga de información. Los atacantes adyacentes sin autenticar podrían explotar esta vulnerabilidad para obtener información del dispositivo.

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.

Tecnologías afectadas (1)

Huawei — B315s-22 Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-7921",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.3,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.5,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 6.5,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@huawei.com",
      "affectedData": [
        {
          "vendor": "Huawei Technologies Co., Ltd.",
          "product": "B315s-22",
          "versions": [
            {
              "status": "affected",
              "version": "21.318.01.00.26"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-09-12T15:29:00.877",
  "references": [
    {
      "url": "https://www.exploit-db.com/exploits/45971/",
      "source": "psirt@huawei.com"
    },
    {
      "url": "https://www.huawei.com/en/psirt/security-notices/huawei-sn-20180903-01-b315s-en",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@huawei.com"
    },
    {
      "url": "https://www.exploit-db.com/exploits/45971/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.huawei.com/en/psirt/security-notices/huawei-sn-20180903-01-b315s-en",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Huawei B315s-22 products with software of 21.318.01.00.26 have an information leak vulnerability. Unauthenticated adjacent attackers may exploit this vulnerability to obtain device information."
    },
    {
      "lang": "es",
      "value": "Los productos Huawei B315s-22 con software 21.318.01.00.26 tienen una vulnerabilidad de fuga de información. Los atacantes adyacentes sin autenticar podrían explotar esta vulnerabilidad para obtener información del dispositivo."
    }
  ],
  "lastModified": "2026-06-17T02:03:56.950",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "matchCriteriaId": "E4F201C7-6B7C-4381-AEA5-E0CA8D704A45"
            }
          ],
          "operator": "OR"
        },
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          ],
          "operator": "OR"
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      "operator": "AND"
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  ],
  "sourceIdentifier": "psirt@huawei.com"
}