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CVE-2019-5082

Status: ModifiedCritical (9.8)—

An exploitable heap buffer overflow vulnerability exists in the iocheckd service I/O-Check functionality of WAGO PFC200 Firmware version 03.01.07(13), WAGO PFC200 Firmware version 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause a heap buffer overflow, potentially resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Wago — Pfc100 FirmwareWago — Pfc200 Firmware

CWEs

References

Raw JSON (NVD)

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  "id": "CVE-2019-5082",
  "cveTags": [],
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
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          "integrityImpact": "HIGH",
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  "affected": [
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          "vendor": "n/a",
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  "published": "2020-01-08T17:15:11.837",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-787"
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      "value": "An exploitable heap buffer overflow vulnerability exists in the iocheckd service I/O-Check functionality of WAGO PFC200 Firmware version 03.01.07(13), WAGO PFC200 Firmware version 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause a heap buffer overflow, potentially resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de desbordamiento del búfer de la pila explotable en la funcionalidad I-O-Check del servicio iocheckd de WAGO PFC200 Firmware versión 03.01.07(13), WAGO PFC200 Firmware versión 03.00.39(12) y WAGO PFC100 Firmware versión 03.00.39(12 ). Un conjunto de paquetes especialmente diseñado puede causar un desbordamiento del búfer de la pila, resultando potencialmente en una ejecución de código. Un atacante puede enviar paquetes no autenticados para desencadenar esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T02:37:06.100",
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