Cloudanix VulnDB

CVE-2026-4769

Critical · 9.8

CVSS

9.8

EPSS

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Published

Jul 13, 2026

CISA due date

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The record

Certain devices in the WAGO System I/O Field series activate an internal diagnostic capability during the initial startup sequence. This functionality is not formally documented and becomes accessible without authentication for a brief period in the early boot phase. During this window, an unauthenticated remote attacker can gain access to the internal system processes, resulting in full system compromise.

Affected packages

Ecosystem Package Introduced Fixed

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