CVE-2023-6448
Unitronics VisiLogic uses a default administrative password
- State
- Published
- Severity
- 9.8 Critical
- Published
- Dec 5, 2023
- Updated
- Oct 21, 2025
- Reserved
- Nov 30, 2023
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | cisa-cg |
Weaknesses
- CWE-1188 Insecure Default Initialization of Resource
Affected Products
| Product | Versions |
|---|---|
VisiLogicUnitronics |
|
References
- https://www.cisa.gov/news-events/alerts/2023/11/28/exploitation-unitronics-plcs-used-water-and-wastewater-systemsgovernment-resource
- https://www.unitronicsplc.com/cyber_security_vision-samba/
- https://downloads.unitronicsplc.com/Sites/plc/Visilogic/Version_Changes-Bug_Reports/VisiLogic%209.9.00%20Version%20changes.pdfrelease-notes
- https://downloads.unitronicsplc.com/Sites/plc/Technical_Library/Unitronics-Cybersecurity-Advisory-2023-001-CVE-2023-6448.pdfvendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6448government-resource
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