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CVE-2019-3421

Estado: ModificadaAlta (8)—

The 7520V3V1.0.0B09P27 version, and all earlier versions of ZTE product ZX297520V3 are impacted by a Command Injection vulnerability. Unauthorized users can exploit this vulnerability to control the user terminal system.

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).

Tecnologías afectadas (1)

ZTW — Zx297520v3 Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-3421",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.7,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 5.1,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.1
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@zte.com.cn",
      "affectedData": [
        {
          "vendor": "ZTE Corporation",
          "product": "ZX297520V3",
          "versions": [
            {
              "status": "affected",
              "version": "All versions up to 7520V3V1.0.0B09P27"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-10-31T16:15:11.287",
  "references": [
    {
      "url": "http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1011643",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@zte.com.cn"
    },
    {
      "url": "http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1011643",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-77"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The 7520V3V1.0.0B09P27 version, and all earlier versions of ZTE product ZX297520V3 are impacted by a Command Injection vulnerability. Unauthorized users can exploit this vulnerability to control the user terminal system."
    },
    {
      "lang": "es",
      "value": "La versión 7520V3V1.0.0B09P27 y todas las versiones anteriores del producto ZX297520V3 de ZTE están afectadas por una vulnerabilidad de inyección de comandos. Los usuarios no autorizados pueden explotar esta vulnerabilidad para controlar el sistema terminal de usuario."
    }
  ],
  "lastModified": "2026-06-17T02:35:08.050",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "matchCriteriaId": "ABEB0B20-15B8-4C4F-A191-628847DE2459",
              "versionEndIncluding": "7520v3v1.0.0b09p27"
            }
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          "operator": "OR"
        },
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          "negate": false,
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      "operator": "AND"
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  "sourceIdentifier": "psirt@zte.com.cn"
}