AutomationDirect CLICK PLUS Use of Hard-coded Cryptographic Key
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| AutomationDirect | CLICK PLUS C0-0x CPU firmware | unaffected |
|
||||||
| AutomationDirect | CLICK PLUS C0-1x CPU firmware | unaffected |
|
||||||
| AutomationDirect | CLICK PLUS C2-x CPU firmware | unaffected |
|
No data.
No data.
| Vendor | Product | Versions |
|---|---|---|
| Automationdirect | Click Plus | — |
Vendor Solution
AutomationDirect recommends that users update CLICK PLUS and firmware to V3.80. https://www.automationdirect.com/support/software-downloads If the update cannot be applied right away, the following compensating controls are recommended until the upgrade can be performed: * Network Isolation – Disconnect the CLICK PLUS PLC from external networks (e.g., the internet or corporate LAN) to reduce exposure. * Secure Communications – Use only trusted, dedicated internal networks or air-gapped systems for device communication. * Access Control – Restrict both physical and logical access to authorized personnel only. * Application Whitelisting – Configure whitelisting so that only trusted, pre-approved applications are allowed to run. Block any unauthorized software. * Endpoint Protection – Use antivirus or EDR tools and configure host-based firewalls to block unauthorized access attempts. * Logging & Monitoring – Enable and regularly review system logs to detect suspicious or unauthorized activity. * Backup & Recovery – Maintain secure, tested backups of the PLC and its configurations to minimize downtime in case of an incident. * Ongoing Risk Assessment – Continuously evaluate risks associated with running outdated firmware and adjust compensating measures accordingly.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-30938 | 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. |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.262% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Automationdirect
Automationdirect click Plus |
|
| Vendors & Products |
Automationdirect
Automationdirect click Plus |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | AutomationDirect CLICK PLUS Use of Hard-coded Cryptographic Key | |
| Weaknesses | CWE-321 | |
| References |
| |
| Metrics |
cvssV3_1
|