# CVE-2023-6448: Unitronics VisiLogic uses a default administrative password

> CVE-2023-6448: Unitronics VisiLogic uses a default administrative password. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2023-6448
Last updated: 2025-10-21T23:05:30Z

- Published: 2023-12-05 17:43 UTC · Updated: 2025-10-21 23:05 UTC · Assigner: cisa-cg
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 2.1%, 81th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2023-12-11, federal due date 2023-12-18, ransomware use: Unknown
- CWE: CWE-1188

## 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.

## CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- unitronics: visilogic
- Unitronics: VisiLogic

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2023-6448)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2023-6448)
- [https://downloads.unitronicsplc.com/Sites/plc/Technical\_Library/Unitronics-Cybersecurity-Advisory-2023-001-CVE-2023-6448.pdf](https://downloads.unitronicsplc.com/Sites/plc/Technical_Library/Unitronics-Cybersecurity-Advisory-2023-001-CVE-2023-6448.pdf)
- [https://downloads.unitronicsplc.com/Sites/plc/Visilogic/Version\_Changes-Bug\_Reports/VisiLogic%209.9.00%20Version%20changes.pdf](https://downloads.unitronicsplc.com/Sites/plc/Visilogic/Version_Changes-Bug_Reports/VisiLogic%209.9.00%20Version%20changes.pdf)
- [https://www.cisa.gov/news-events/alerts/2023/11/28/exploitation-unitronics-plcs-used-water-and-wastewater-systems](https://www.cisa.gov/news-events/alerts/2023/11/28/exploitation-unitronics-plcs-used-water-and-wastewater-systems)
- [https://www.unitronicsplc.com/cyber\_security\_vision-samba/](https://www.unitronicsplc.com/cyber_security_vision-samba/)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2023-6448 · Markdown: https://rewindex.com/cve/CVE-2023-6448.md · JSON: https://rewindex.com/api/v1/cves/CVE-2023-6448 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:24.197Z