High severity7.8NVD Advisory· Published Mar 11, 2020· Updated Jun 17, 2026
CVE-2019-5166
CVE-2019-5166
Description
An exploitable stack buffer overflow vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 version 03.02.02(14). A specially crafted XML cache file written to a specific location on the device can cause a stack buffer overflow, resulting in code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.
AI Insight
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Affected products
3- Range: version 03.02.02(14)
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2019-0961nvdExploitMitigationThird Party Advisory
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