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CVE-2021-33555

Estado: ModificadaAlta (7.5)—

In PEPPERL+FUCHS WirelessHART-Gateway <= 3.0.7 the filename parameter is vulnerable to unauthenticated path traversal attacks, enabling read access to arbitrary files on the server.

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 (2)

Pepperl-fuchs — Wha-gw-f2d2-0-as- Z2-eth.eip FirmwarePepperl-fuchs — Wha-gw-f2d2-0-as-z2-eth Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-33555",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "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"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
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        "userInteractionRequired": false
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          "baseScore": 7.5,
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          "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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          "product": "WHA-GW-F2D2-0-AS- Z2-ETH",
          "versions": [
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              "version": "3.0.7",
              "versionType": "custom",
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        {
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  ],
  "published": "2021-08-31T11:15:07.277",
  "references": [
    {
      "url": "https://cert.vde.com/en-us/advisories/vde-2021-027",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "info@cert.vde.com"
    },
    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "info@cert.vde.com",
      "description": [
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          "lang": "en",
          "value": "CWE-22"
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  "descriptions": [
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    },
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      "lang": "es",
      "value": "En PEPPERL+FUCHS WirelessHART-Gateway versiones anteriores a 3.0.7 incluyéndola, el parámetro filename es vulnerable a ataques de salto de ruta no autenticados, permitiendo el acceso de lectura a archivos arbitrarios en el servidor"
    }
  ],
  "lastModified": "2026-06-17T03:54:47.387",
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