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CVE-2021-34566

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CVE-2021-34566

Published: Nov 9, 2022

Modified: May 1, 2025

PUBLISHED

CVSS v3.1

9.1

CRITICAL

Description

In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to crash the iocheck process and write memory resulting in loss of integrity and DoS.

VendorProductVersions

WAGO

750-81xx/xxx-xxxFW

affected
FW1 - <= FW18 Patch 2

WAGO

750-82xx/xxx-xxx

affected
FW1 - <= FW18 Patch 2

WAGO

752-8303/8000-0002

affected
FW1 - <= FW18 Patch 2

WAGO

762-4xxx

affected
FW1 - <= FW18 Patch 2

WAGO

762-5xxx

affected
FW1 - <= FW18 Patch 2

WAGO

762-6xxx

affected
FW1 - <= FW18 Patch 2

Weaknesses (CWE)

CWE-120

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

References

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