CVE-2021-34569

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

State: Published
Severity: 9.8 Critical
Published: Nov 9, 2022
Updated: May 1, 2025
Reserved: Jun 10, 2021

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CERTVDE

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
750-81xx/xxx-xxxFWWAGO	FW1 through FW18 Patch 2Affected
750-82xx/xxx-xxxWAGO	FW1 through FW18 Patch 2Affected
752-8303/8000-0002WAGO	FW1 through FW18 Patch 2Affected
762-4xxxWAGO	FW1 through FW18 Patch 2Affected
762-5xxxWAGO	FW1 through FW18 Patch 2Affected
762-6xxxWAGO	FW1 through FW18 Patch 2Affected

References

https://cert.vde.com/en/advisories/VDE-2020-036/

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.