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CVE-2019-5073

Estado: ModificadaMedia (5.3)—

An exploitable information exposure vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause an external tool to fail, resulting in uninitialized stack data to be copied to the response packet buffer. An attacker can send unauthenticated packets 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 (2)

Wago — PFC 100 FirmwareWago — PFC 200 Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2019-5073",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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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,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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        "impactScore": 1.4,
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  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "WAGO PFC200",
          "versions": [
            {
              "status": "affected",
              "version": "Firmware version 03.01.07(13)"
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              "version": "Firmware version 03.00.39(12)"
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        {
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  "published": "2019-12-18T21:15:13.897",
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      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "talos-cna@cisco.com"
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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": [
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          "lang": "en",
          "value": "CWE-200"
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "An exploitable information exposure vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause an external tool to fail, resulting in uninitialized stack data to be copied to the response packet buffer. An attacker can send unauthenticated packets to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de exposición a la información explotable en la funcionalidad \"I/O-Check\" del servicio iocheckd de WAGO PFC 200 versiones de firmware 03.01.07(13) y 03.00.39(12), y WAGO PFC100 versión de firmware 03.00.39(12). Un conjunto de paquetes especialmente diseñado puede causar fallo de una herramienta externa, resultando en que los datos de la pila no inicializados sean copiados en el búfer de paquetes de respuesta. Un atacante puede enviar paquetes no autenticados para activar esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T02:37:05.177",
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  "sourceIdentifier": "talos-cna@cisco.com"
}