Vulnerability details
CVE-2025-55069
AutomationDirect CLICK PLUS C0-0x CPU firmwareAutomationDirect CLICK PLUS C0-1x CPU firmwareAutomationDirect CLICK PLUS C2-x CPU firmware
AutomationDirect CLICK PLUS Predictable Seed in Pseudo-Random Number Generator
CVSS 4.0
8.7High
Official description
A predictable seed in pseudo-random number generator vulnerability has been discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software implements a predictable seed for its pseudo-random number generator, which compromises the security of the generated private keys.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.7High | 4.0 | CVEProject cvelistV5 (CNA) (icscert) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |
| 8.3High | 3.1 | CVEProject cvelistV5 (CNA) (icscert) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| AutomationDirect | CLICK PLUS C0-0x CPU firmware | v < v3.71 | CVEProject cvelistV5 (CNA) |
| AutomationDirect | CLICK PLUS C0-1x CPU firmware | v < v3.71 | CVEProject cvelistV5 (CNA) |
| AutomationDirect | CLICK PLUS C2-x CPU firmware | v < v3.71 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2025-09-24
- Last updated
- 2025-09-24
- State
- Published
- Assigner (CNA)
- icscert
Exploit prediction (EPSS)
0.3%
Probability of exploitation in 30 days
23.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-337Predictable Seed in Pseudo-Random Number Generator