CVE-2021-34567 HIGH

CVE-2021-34567: WAGO I/O-Check Service prone to Out-of-bounds Read

Vendor Wago
Product 750-81xx/xxx-xxxFW
Weakness CWE-125
Published November 9, 2022
Last update May 1, 2025
View on NVD All CVEs

CVSS base score

8.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to provoke a denial of service and an limited out-of-bounds read.

Key dates

02Disclosure timeline

November 9, 2022 CVE published
May 1, 2025 Record updated