Critical severity9.8NVD Advisory· Published Mar 16, 2020· Updated Jun 17, 2026
CVE-2020-6990
CVE-2020-6990
Description
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 key utilized to help protect the account password is hard coded into the RSLogix 500 binary file. An attacker could identify cryptographic keys and use it for further cryptographic attacks that could ultimately lead to a remote attacker gaining unauthorized access to the controller.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
8cpe:2.3:a:rockwellautomation:rslogix_500:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:rockwellautomation:rslogix_500:*:*:*:*:*:*:*:*range: <=12.001
- (no CPE)range: <=v12.001
cpe:2.3:o:rockwellautomation:micrologix_1100_firmware:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:rockwellautomation:micrologix_1100_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:micrologix_1400_a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:micrologix_1400_b_firmware:*:*:*:*:*:*:*:*range: <=21.001
- Rockwell Automation/MicroLogix 1400 Controllers Series B, MicroLogix 1100 Controller, RSLogix 500 Softwaredescription
- Range: <=v21.001
- Range: all versions
Patches
Vulnerability mechanics
References
1- www.us-cert.gov/ics/advisories/icsa-20-070-06nvdThird Party AdvisoryUS Government Resource
News mentions
0No linked articles in our index yet.