CVE-2023-6448
Unitronics VisiLogic uses a default administrative password
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-1188 |
| Vendor | unitronics |
| Product | visilogic |
| Published | Dec 5, 2023 |
| Last Updated | Oct 21, 2025 |
⚠️ Actively Exploited — Act Now
Get instant alerts for unitronics visilogic
This vulnerability is actively exploited in the wild. Set up free real-time alerts so you're first to know about threats like CVE-2023-6448.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Unitronics / VisiLogic
0 < 9.9.00
References
cisa.gov: https://www.cisa.gov/news-events/alerts/2023/11/28/exploitation-unitronics-plcs-used-water-and-wastewater-systems unitronicsplc.com: https://www.unitronicsplc.com/cyber_security_vision-samba/ downloads.unitronicsplc.com: https://downloads.unitronicsplc.com/Sites/plc/Visilogic/Version_Changes-Bug_Reports/VisiLogic%209.9.00%20Version%20changes.pdf downloads.unitronicsplc.com: https://downloads.unitronicsplc.com/Sites/plc/Technical_Library/Unitronics-Cybersecurity-Advisory-2023-001-CVE-2023-6448.pdf cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6448