VULNERABILITY INTELLIGENCE
CVE-2026-4769
CVSS score9.8 CRITICAL
EPSS probability0.76%
CISA KEVNot currently listed
Published2026-07-13
Last modified2026-07-13
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
Certain devices in the WAGO System I/O Field series activate an internal diagnostic capability during the initial startup sequence. This functionality is not formally documented and becomes accessible without authentication for a brief period in the early boot phase. During this window, an unauthenticated remote attacker can gain access to the internal system processes, resulting in full system compromise.
Weakness classification
- info@cert.vde.com: CWE-912