CVE-2019-5184

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-03-23 · updated 2026-06-17
Weakness: CWE-415

Description

An exploitable double free vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200. A specially crafted XML cache file written to a specific location on the device can cause a heap pointer to be freed twice, resulting in a denial of service and potentially code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.

Affected products

WAGO PFC200: 03.02.02(14)

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0965
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0965

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