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CVE-2026-4769

Unauthenticated Access to Internal Diagnostic Interface PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
WAGO / 0765-110x/0100-0000affected 1.0.0.0 before 1.2.1.100
WAGO / 0765-120x/0100-0000affected 1.0.0.0 before 1.2.7.100
WAGO / 0765-150x/0100-0000affected 1.0.0.0 before 1.2.7.103
WAGO / 0765-2101/0100-0000affected 1.0.0.0 before 1.2.1.102
WAGO / 0765-2102/0100-0000affected 1.0.0.0 before 1.2.5.101
WAGO / 0765-410x/0100-0000affected 1.0.0.0 before 1.2.1.100
WAGO / 0765-420x/0100-0000affected 1.0.0.0 before 1.2.7.100
WAGO / 0765-450x/0100-0000affected 1.0.0.0 before 1.2.7.103

CWE

CWE-912

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.