AutomationDirect CLICK PLUS Use of a Broken or Risky Cryptographic Algorithm
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-327.
Summary
The use of a broken or risky cryptographic algorithm was discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software uses an insecure implementation of the RSA encryption algorithm.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| AutomationDirect | CLICK PLUS C0-0x CPU firmware | before v3.71 | v3.71 | Patch available | CNA |
| AutomationDirect | CLICK PLUS C0-1x CPU firmware | before v3.71 | v3.71 | Patch available | CNA |
| AutomationDirect | CLICK PLUS C2-x CPU firmware | before v3.71 | v3.71 | Patch available | CNA |
- 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-2025-36230 AutomationDirect CLICK PLUS Improper Resource Shutdown or ReleasePriority LOW 36
- TI-2025-35912 AutomationDirect CLICK PLUS Use of Hard-coded Cryptographic KeyPriority LOW 36
Timeline
- 2026-10-02 Threatist record created from CVE-2025-59484
- 2026-10-03 Alias added: GHSA-p3m4-mwpv-24q7
References
More AutomationDirect vulnerabilities
- 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
Sources
- CVE-2025-59484 · CVE Program
- CVE-2025-59484 · NVD
- FIRST EPSS
- GHSA-p3m4-mwpv-24q7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences