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Critical · 9.8 CVE-2021-34569 EUVD-2021-21219GHSA-45x3-7h4h-cjc5

WAGO I/O-Check Service prone to Out-of-bounds Write

Published Nov 9, 2022 · Updated May 1, 2025 · Assigned by CERTVDE

Description

In WAGO I/O-Check Service in multiple products an attacker can send a specially crafted packet containing OS commands to crash the diagnostic tool and write memory.

Affected products

VendorProductAffectedFixed
WAGO 750-81xx/xxx-xxxFW FW1 – ≤ FW18 Patch 2 —
WAGO 750-82xx/xxx-xxx FW1 – ≤ FW18 Patch 2 —
WAGO 752-8303/8000-0002 FW1 – ≤ FW18 Patch 2 —
WAGO 762-4xxx FW1 – ≤ FW18 Patch 2 —
WAGO 762-5xxx FW1 – ≤ FW18 Patch 2 —
WAGO 762-6xxx FW1 – ≤ FW18 Patch 2 —

Advisories 1

References