CVE-2019-5078

CriticalCVSS 9.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-306

Affected software

VendorProductVersions
n/aWAGO PFC200Firmware version 03.01.07(13); Firmware version 03.00.39(12)
n/aWAGO PFC100Firmware version 03.00.39(12)

References

Timeline

Published
Dec 18, 2019
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2019-5078: Critical severity, CVSS 9.1 | Vulnix