Critical severity9.1NVD Advisory· Published Dec 18, 2019· Updated Jun 17, 2026
CVE-2019-5080
CVE-2019-5080
Description
An exploitable denial-of-service vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A single packet can cause a denial of service and weaken credentials resulting in the default documented credentials being applied to the device. An attacker can send an unauthenticated packet to trigger this vulnerability.
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Affected products
2- Range: 03.00.39(12)
- Range: 03.01.07(13), 03.00.39(12)
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2019-0872nvdThird Party Advisory
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