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CVE-2020-28993

Estado: ModificadaAlta (7.5)—

Se presenta una vulnerabilidad de Salto de Directorio en ATX miniCMTS200a Broadband Gateway versiones hasta 2.0 y Pico CMTS versiones hasta 2.0. Una explotación con éxito de esta vulnerabilidad permitiría a un atacante no autenticado recuperar unas credenciales de administrador mediante el envío de una petición POST maliciosa

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)

ATX — Minicmts200a Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-28993",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
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          "scope": "UNCHANGED",
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          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/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"
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        "impactScore": 3.6,
        "exploitabilityScore": 3.9
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  "affected": [
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      "affectedData": [
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          "product": "n/a",
          "versions": [
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  "published": "2020-12-01T16:15:11.067",
  "references": [
    {
      "url": "https://atx.com/products/commercial-services-gateways/minicmts200a-broadband-gateway/",
      "tags": [
        "Product",
        "Vendor Advisory"
      ],
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    },
    {
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        "VDB Entry"
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      "url": "https://atx.com/products/commercial-services-gateways/minicmts200a-broadband-gateway/",
      "tags": [
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        "Vendor Advisory"
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Directory Traversal vulnerability exists in ATX miniCMTS200a Broadband Gateway through 2.0 and Pico CMTS through 2.0. Successful exploitation of this vulnerability would allow an unauthenticated attacker to retrieve administrator credentials by sending a malicious POST request."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de Salto de Directorio en ATX miniCMTS200a Broadband Gateway versiones hasta 2.0 y Pico CMTS versiones hasta 2.0. Una explotación con éxito de esta vulnerabilidad permitiría a un atacante no autenticado recuperar unas credenciales de administrador mediante el envío de una petición POST maliciosa"
    }
  ],
  "lastModified": "2026-06-17T03:10:56.880",
  "configurations": [
    {
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