CVE-2020-12523

CriticalCVSS 9.1/10Last modified Jun 17, 2026

Description

On Phoenix Contact mGuard Devices versions before 8.8.3 LAN ports get functional after reboot even if they are disabled in the device configuration. For mGuard devices with integrated switch on the LAN side, single switch ports can be disabled by device configuration. After a reboot these ports get functional independent from their configuration setting: Missing Initialization of Resource

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weakness enumeration

CWE-909

Affected software

No affected versions have been published.

Timeline

Published: Dec 17, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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