Unitronics Vision PLC and HMI Insecure Default Password Vulnerability

Summary

CVECVE-2023-6448
StatePUBLISHED
AssignerUnknown
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-12-05 18:15:00 UTC
Updated2023-12-05 20:13:00 UTC
DescriptionUnitronics Vision Series PLCs and HMIs ship with an insecure default password, which if left unchanged, can allow attackers to execute remote commands.

Risk And Classification

EPSS: 0.020890000 probability, percentile 0.796340000 (date 2026-07-22)

CISA KEV: Listed on 2023-12-11; due 2023-12-18; ransomware use Unknown

CISA Known Exploited Vulnerability

VendorUnitronics
ProductVision PLC and HMI
NameUnitronics Vision PLC and HMI Insecure Default Password Vulnerability
Required ActionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
NotesNote that while it is possible to change the default password, implementors are encouraged to remove affected controllers from public networks and update the affected firmware: https://downloads.unitronicsplc.com/Sites/plc/Technical_Library/Unitronics-Cybersecurity-Advisory-2023-001-CVE-2023-6448.pdf; https://nvd.nist.gov/vuln/detail/CVE-2023-6448

References

ReferenceSourceLinkTags
www.cisa.gov/news-events/alerts/2023/11/28/exploitation-unitronics-plcs-us... www.cisa.gov
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Legacy QID Mappings

  • 379326 Unitronics VisiLogic Insecure Default Password Vulnerability

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