Critical severity9.1NVD Advisory· Published Dec 18, 2019· Updated Jun 17, 2026
CVE-2019-5078
CVE-2019-5078
Description
An exploitable denial of service 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 a denial of service, resulting in the device entering an error state where it ceases all network communications. An attacker can send unauthenticated packets to trigger this vulnerability.
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Affected products
2Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2019-0870nvdThird Party Advisory
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