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CVE-2019-5080

Estado: ModificadaCrítica (9.1)—

An exploitable denial-of-service vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A single packet can cause a denial of service and weaken credentials resulting in the default documented credentials being applied to the device. An attacker can send an unauthenticated packet 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)

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  "id": "CVE-2019-5080",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
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          "baseScore": 9.1,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 5.2,
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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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              "status": "affected",
              "version": "Firmware version 03.00.39(12)"
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              "status": "affected",
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  "published": "2019-12-18T21:15:14.240",
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      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0872",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "talos-cna@cisco.com"
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    {
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0872",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
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  "descriptions": [
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      "lang": "en",
      "value": "An exploitable denial-of-service vulnerability exists in the iocheckd service \"I/O-Check\" functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A single packet can cause a denial of service and weaken credentials resulting in the default documented credentials being applied to the device. An attacker can send an unauthenticated packet to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de denegación de servicio 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 solo paquete puede causar una denegación de servicio y debilitar las credenciales, resultando en que las credenciales documentadas predeterminadas sean aplicadas al dispositivo. Un atacante puede enviar un paquete no autenticado para activar esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T02:37:05.900",
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}