CVE-2020-6984 - Vulnerability Details - OpenCVE

Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior, The cryptographic function utilized to protect the password in MicroLogix is discoverable.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact total

Vendors	Products
Rockwellautomation	Micrologix 1100 Micrologix 1100 Firmware Micrologix 1400 Micrologix 1400 A Firmware Micrologix 1400 B Firmware Rslogix 500

Configuration 1 [-]

AND

OR	cpe:2.3:o:rockwellautomation:micrologix_1400_a_firmware::::::::
	cpe:2.3:o:rockwellautomation:micrologix_1400_b_firmware::::::::

cpe:2.3:h:rockwellautomation:micrologix_1400:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:rockwellautomation:micrologix_1100_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:rockwellautomation:micrologix_1100:-:*:*:*:*:*:*:*

Configuration 3 [-]

cpe:2.3:a:rockwellautomation:rslogix_500:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://www.us-cert.gov/ics/advisories/icsa-20-070-06

History

Wed, 03 Jun 2026 14:30:00 +0000

Type	Values Removed	Values Added
Metrics	cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}`	ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}` cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: icscert

Published: 2020-03-16T15:41:13.000Z

Updated: 2026-06-03T13:22:52.674Z

Reserved: 2020-01-14T00:00:00.000Z

Link: CVE-2020-6984

Vulnrichment

Updated: 2024-08-04T09:18:02.527Z

NVD

Status : Modified

Published: 2020-03-16T16:15:14.670

Modified: 2026-06-03T14:16:23.307

Link: CVE-2020-6984

Redhat

No data.

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