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TI-2025-34730 Aliases CVE-2025-55038GHSA-28rh-fv64-h63q

AutomationDirect CLICK PLUS Missing Authorization

Priority LOW 35CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

An authorization bypass vulnerability has been discovered in the Click Plus C2-03CPU2 device firmware version 3.60. Through the KOPR protocol utilized by the Remote PLC application, authenticated users with low-level access permissions can exploit this vulnerability to read and modify PLC variables beyond their intended authorization level.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0026 17th percentileScored 2026-11-07
Fix Fixed CLICK PLUS C0-0x CPU firmware (AutomationDirect): v3.71CLICK PLUS C0-1x CPU firmware (AutomationDirect): v3.71+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AutomationDirectCLICK PLUS C0-0x CPU firmwarebefore v3.71v3.71Patch availableCNA
AutomationDirectCLICK PLUS C0-1x CPU firmwarebefore v3.71v3.71Patch availableCNA
AutomationDirectCLICK PLUS C2-x CPU firmwarebefore v3.71v3.71Patch availableCNA
  • CLICK PLUS C0-0x CPU firmware VendorAutomationDirect Affected before v3.71 Fixed in v3.71 Patch available CNA
  • CLICK PLUS C0-1x CPU firmware VendorAutomationDirect Affected before v3.71 Fixed in v3.71 Patch available CNA
  • CLICK PLUS C2-x CPU firmware VendorAutomationDirect Affected before v3.71 Fixed in v3.71 Patch available CNA

Remediation

  • Fix · CNA CLICK PLUS C0-0x CPU firmware (AutomationDirect) Fixed in v3.71
  • Fix · CNA CLICK PLUS C0-1x CPU firmware (AutomationDirect) Fixed in v3.71
  • Fix · CNA CLICK PLUS C2-x CPU firmware (AutomationDirect) Fixed in v3.71

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    AutomationDirect CLICK PLUS C0-0x CPU firmware, CLICK PLUS C0-1x CPU firmware, CLICK PLUS C2-x CPU firmware v3.71

    7 records Highest priority Priority LOW 7 LOW

    Other records, highest priority first

    • TI-2025-34759 AutomationDirect CLICK PLUS Predictable Seed in Pseudo-Random Number GeneratorPriority LOW 39
    • TI-2025-37028 AutomationDirect CLICK PLUS Use of a Broken or Risky Cryptographic AlgorithmPriority LOW 38
    • TI-2025-36230 AutomationDirect CLICK PLUS Improper Resource Shutdown or ReleasePriority LOW 36
    Show all 7 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-55038
  2. 2026-10-03 Alias added: GHSA-28rh-fv64-h63q

References

Other 2

  • TI-2024-14467 A leftover debug code vulnerability exists in the Telnet Diagnostic Interface… CVSS 3.1CRITICAL 9.8
  • TI-2024-14780 Improper access control in AutomationDirect P3-550E CVSS 3.1CRITICAL 9.1
  • TI-2025-24868 AutomationDirect MB-Gateway Missing Authentication for Critical Function CVSS 4.0CRITICAL 10.0
  • TI-2024-16461 Stack-based buffer overflow in AutomationDirect P3-550E CVSS 3.1CRITICAL 9.8
  • TI-2024-16460 Stack-based buffer overflow in AutomationDirect P3-550E CVSS 3.1CRITICAL 9.8
  • TI-2021-12594 Automation Direct CLICK PLC CPU Modules Authentication Bypass Using an Alternate Path or Channel CVSS 3.1CRITICAL 9.8
See all 66 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences