VDE-2025-080

csafDEwago_psirt

WAGO: Multiple Vulnerabilities in I/O-Check Service

Advisory ansehen veröffentlicht 2025-09-09

A missing authentication vulnerability exists in the iocheckd service "I/O-Check" functionality. 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.

01

beschreibt (1)

Zugehörige CVEs.

IDSchweregrad ausnutzbar
CVE-2019-5080UScritical9.1OT erhöht—
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 PF…
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Referenzen

Externe Belege — Patches, Meldungen, Analysen.

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Behebungen (2)

  • Mitigation

    The I/O-Check service protocol is only needed during installation and commissioning, not during normal operations. It is highly recommended to disable the IP-port 6626 after commissioning.

  • Kein Fix geplant

    no fix planned

scry

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