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Critical severity9.8NVD Advisory· Published Dec 18, 2019· Updated Jun 17, 2026

CVE-2019-5079

CVE-2019-5079

Description

An exploitable heap buffer overflow 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 a heap buffer overflow, potentially resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

5
  • Wago/Pfc100 Firmware
    cpe:2.3:o:wago:pfc_100_firmware:03.00.39\(12\):*:*:*:*:*:*:*
  • Wago/Pfc200 Firmware2 versions
    cpe:2.3:o:wago:pfc_200_firmware:03.00.39\(12\):*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:wago:pfc_200_firmware:03.00.39\(12\):*:*:*:*:*:*:*
    • cpe:2.3:o:wago:pfc_200_firmware:03.01.07\(13\):*:*:*:*:*:*:*
  • Wago/PFC200llm-fuzzy
    Range: 03.01.07(13), 03.00.39(12)
  • Wago/PFC100llm-fuzzy
    Range: 03.00.39(12)

Patches

Vulnerability mechanics

References

1

News mentions

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