CVE-2019-5166

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.

• CWE-787

• https://talosintelligence.com/vulnerability_reports/TALOS-2019-0961Exploit, Mitigation, Third Party Advisory
• https://talosintelligence.com/vulnerability_reports/TALOS-2019-0961Exploit, Mitigation, Third Party Advisory

Published

Mar 11, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2019-5160An exploitable improper host validation vulnerability exists…9.1
• CVE-2019-5161An exploitable remote code execution vulnerability exists in…9.1
• CVE-2019-5162An exploitable improper access control vulnerability exists …8.8
• CVE-2019-5163An exploitable denial-of-service vulnerability exists in the…7.5
• CVE-2019-5164An exploitable code execution vulnerability exists in the ss…7.8
• CVE-2019-5165An exploitable authentication bypass vulnerability exists in…7.2
• CVE-2019-5167An exploitable command injection vulnerability exists in the…7.8
• CVE-2019-5168An exploitable command injection vulnerability exists in the…7.8
• CVE-2019-5169An exploitable command injection vulnerability exists in the…7.8
• CVE-2019-5170An exploitable command injection vulnerability exists in the…7.8
• CVE-2019-5171An exploitable command injection vulnerability exists in the…7.8
• CVE-2019-5172An exploitable command injection vulnerability exists in the…7.8