CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2020-6990
Critical (9.8) in rockwellautomation. EPSS 5.9% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 5.9% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-798, CWE-321
- Published
- Modified
- Record from
- the NVD, synced
Affected
- rockwellautomation:micrologix_1100_firmware
- rockwellautomation:micrologix_1400_a_firmware
- rockwellautomation:micrologix_1400_b_firmware
- rockwellautomation:rslogix_500