CVE-2023-6448

9.8 CRITICAL CISA KEV - Actively Exploited

Published: December 05, 2023 Modified: November 03, 2025

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

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

Source: 9119a7d8-5eab-497f-8521-727c672e3725

Vendor Advisory

https://downloads.unitronicsplc.com/Sites/plc/Visilogic/Version_Changes-Bug_Reports/VisiLogic%209.9.00%20Version%20changes.pdf

Source: 9119a7d8-5eab-497f-8521-727c672e3725

Release Notes

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

Source: 9119a7d8-5eab-497f-8521-727c672e3725

Third Party Advisory US Government Resource

https://www.unitronicsplc.com/cyber_security_vision-samba/

Source: 9119a7d8-5eab-497f-8521-727c672e3725

Product

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

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://downloads.unitronicsplc.com/Sites/plc/Visilogic/Version_Changes-Bug_Reports/VisiLogic%209.9.00%20Version%20changes.pdf

Source: af854a3a-2127-422b-91ae-364da2661108

Release Notes

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

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory US Government Resource

https://www.unitronicsplc.com/cyber_security_vision-samba/

Source: af854a3a-2127-422b-91ae-364da2661108

Product

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6448

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

9 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.8 / 10.0

EPSS (Exploit Probability)

13.3%

94th percentile

Exploitation Status

Actively Exploited

Remediation due: 2023-12-18

Weaknesses (CWE)

CWE-1188 CWE-798

Affected Vendors

unitronics

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