Unitronics VisiLogic before version 9.9.00, used in Vision and Samba PLCs and HMIs, uses a default administrative password. An unauthenticated attacker with network access can take administrative control of a vulnerable system.
CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.
Unitronics VisiLogic before version 9.9.00, used in Vision and Samba PLCs and HMIs, uses a default administrative password. An unauthenticated attacker with network access can take administrative control of a vulnerable system.
Confirm exposure before applying a vendor-supported change.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due date: 2023.12.18Confirm that Unitronics Vision PLC and HMI and an affected version are present.
Combine exploitation signals with asset exposure and business criticality.
Follow the vendor advisory or supported update path and preserve rollback options.
Recheck the version, service health, access paths, and relevant logs.
