VULNERABILITY INTELLIGENCE

CVE-2021-34566

CVSS score9.1 CRITICAL
EPSS probability1.15%
CISA KEVNot currently listed
Published2022-11-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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.

Weakness classification

  • info@cert.vde.com: CWE-120

Primary references