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Medium severity5.3NVD Advisory· Published Dec 18, 2019· Updated Jun 17, 2026

CVE-2019-5073

CVE-2019-5073

Description

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.

AI Insight

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Affected products

5
  • Wago/Pfc 100 Firmware
    cpe:2.3:o:wago:pfc_100_firmware:03.00.39\(12\):*:*:*:*:*:*:*
  • Wago/Pfc 200 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/Pfc100 Firmwarellm-fuzzy
    Range: = 03.00.39(12)
  • Wago/Pfc200 Firmwarellm-fuzzy
    Range: = 03.01.07(13) OR = 03.00.39(12)

Patches

Vulnerability mechanics

References

1

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