Vulnerability · Published Sep 23, 2025 · Assigned by icscert
CVE-2025-59484AutomationDirect CLICK PLUS Use of a Broken or Risky Cryptographic Algorithm
High 8.3
In plain English
A high-severity broken cryptography in CLICK PLUS C0-0x CPU firmware from AutomationDirect. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.1%top 97.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AutomationDirect | CLICK PLUS C0-0x CPU firmware | 0 – before v3.71 |
| AutomationDirect | CLICK PLUS C0-1x CPU firmware | 0 – before v3.71 |
| AutomationDirect | CLICK PLUS C2-x CPU firmware | 0 – before v3.71 |
Weakness: CWE-327 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L