CVE-2019-5171

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-03-12 · updated 2026-06-17
Weakness: CWE-78

Description

An exploitable command injection vulnerability exists in the iocheckd service ‘I/O-Check’ function of the WAGO PFC 200 Firmware version 03.02.02(14). An attacker can send specially crafted packet at 0x1ea48 to the extracted hostname value from the xml file that is used as an argument to /etc/config-tools/config_interfaces interface=X1 state=enabled ip-address=<contents of ip node> using sprintf().

Affected products

WAGO PFC200: 03.02.02(14)

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962

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