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CVE-2019-5166

Estado: ModificadaAlta (7.8)—

An exploitable stack buffer overflow vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 version 03.02.02(14). A specially crafted XML cache file written to a specific location on the device can cause a stack buffer overflow, resulting in code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.

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)

Wago — Pfc200 Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2019-5166",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
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          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 1.8
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  "affected": [
    {
      "source": "talos-cna@cisco.com",
      "affectedData": [
        {
          "vendor": "Wago",
          "product": "WAGO PFC200 Firmware",
          "versions": [
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              "status": "affected",
              "version": "version 03.02.02(14)"
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  "published": "2020-03-11T22:27:41.300",
  "references": [
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      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0961",
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        "Exploit",
        "Mitigation",
        "Third Party Advisory"
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      "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-787"
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "An exploitable stack buffer overflow vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 version 03.02.02(14). A specially crafted XML cache file written to a specific location on the device can cause a stack buffer overflow, resulting in code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file."
    },
    {
      "lang": "es",
      "value": "Existe  una vulnerabilidad de desbordamiento de búfer de la pila explotable en la funcionalidad \"I/O-Check\" del servicio iocheckd en WAGO PFC 200 versión 03.02.02(14). Un archivo cache XML especialmente diseñado escrito en una ubicación específica en el dispositivo puede causar un desbordamiento de búfer de la pila, resultando en una ejecución de código. Un atacante puede enviar un paquete especialmente diseñado para activar el análisis de este archivo cache."
    }
  ],
  "lastModified": "2026-06-17T02:37:14.860",
  "configurations": [
    {
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  "sourceIdentifier": "talos-cna@cisco.com"
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