CVE-2023-6448

Published: Dec 5, 2023

Modified: Oct 21, 2025

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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.

Vendor	Product	Versions
Unitronics	VisiLogic	affected `0 - < 9.9.00`

Weaknesses (CWE)

CWE-1188

CVSS v3.1 Details

CVSS v3.1 Vector

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

References

https://www.cisa.gov/news-events/alerts/2023/11/28/exploitation-unitronics-plcs-used-water-and-wastewater-systems

government-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.pdf

release-notes

https://downloads.unitronicsplc.com/Sites/plc/Technical_Library/Unitronics-Cybersecurity-Advisory-2023-001-CVE-2023-6448.pdf

vendor-advisory

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CVE-2023-6448

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References