CVE-2024-57811

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

In Eaton X303 3.5.16 - X303 3.5.17 Build 712, an attacker with network access to a XC-303 PLC can login as root over SSH. The root password is hardcoded in the firmware. NOTE: This vulnerability appears in versions that are no longer supported by Eaton.

Published 2025-01-13. Last modified 2026-06-17.