Findings

CVE-2023-6448

Unitronics Vision PLC and HMI Insecure Default Password Vulnerability

Published Dec 5, 2023 · updated Jun 16, 2026 · unitronics vision1210 firmware

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.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 5, 2023 · Catalog

    Detected

    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.

  2. Dec 11, 2023 · CISA KEV

    Known exploited

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

  3. Dec 18, 2023 · CISA KEV

    Remediation due

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

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Required action

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

CISA due date Dec 18, 2023

Affected

  • cpe unitronics/vision1040 firmwareversion unspecified
  • cpe unitronics/vision1210 firmwareversion unspecified
  • cpe unitronics/vision130 firmwareversion unspecified
  • cpe unitronics/vision230 firmwareversion unspecified
  • cpe unitronics/vision280 firmwareversion unspecified
  • cpe unitronics/vision290 firmwareversion unspecified
  • cpe unitronics/vision350 firmwareversion unspecified
  • cpe unitronics/vision430 firmwareversion unspecified
  • cpe unitronics/vision530 firmwareversion unspecified
  • cpe unitronics/vision560 firmwareversion unspecified
  • cpe unitronics/vision570 firmwareversion unspecified
  • cpe unitronics/vision700 firmwareversion unspecified
  • vendor Unitronics Vision PLC and HMIversion unspecified

Sources

  • CISA KEVCVE-2023-6448

    Unitronics Vision Series PLCs and HMIs ship with an insecure default password, which if left unchanged, can allow attackers to execute remote commands.

    cisa.gov
  • CVE.orgCVE-2023-6448

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2023-6448

    30-day exploitation probability 2.1%

    first.org
  • NIST NVDCVE-2023-6448

    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.

    nvd.nist.gov

References

CVE-2023-6448 · ZeroDay Findings