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CVE-2021-40390

Estado: ModificadaCrítica (9.8)—

An authentication bypass vulnerability exists in the Web Application functionality of Moxa MXView Series 3.2.4. A specially-crafted HTTP request can lead to unauthorized access. An attacker can send an HTTP request to trigger this vulnerability.

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)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-40390",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-15T18:20:34.451367Z"
        }
      }
    ],
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "obtainAllPrivilege": false,
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  },
  "affected": [
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          "vendor": "Moxa",
          "product": "MXView Series",
          "versions": [
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  "published": "2022-04-14T20:15:08.703",
  "references": [
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      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1401",
      "tags": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "lang": "en",
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    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de omisión de autenticación en la funcionalidad de la aplicación web de Moxa MXView Series versión 3.2.4. Una petición HTTP especialmente diseñada puede conllevar a un acceso no autorizado. Un atacante puede enviar una petición HTTP para desencadenar esta vulnerabilidad"
    }
  ],
  "lastModified": "2026-06-17T04:06:50.933",
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