Vulnerability · Published Sep 23, 2025 · Assigned by icscert
CVE-2025-58069AutomationDirect CLICK PLUS Use of Hard-coded Cryptographic Key
Medium 5.3
In plain English
A medium-severity security flaw 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 0.3% (higher than 18% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 81.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The use of a hard-coded cryptographic key was discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software contains a hard-coded AES key used to protect the initial messages of a new KOPS session.
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-321 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N