CVE-2025-59484 (GCVE-0-2025-59484)
Vulnerability from cvelistv5 – Published: 2025-09-23 22:08 – Updated: 2025-09-24 14:08
VLAI
EPSS
VEX
Title
AutomationDirect CLICK PLUS Use of a Broken or Risky Cryptographic Algorithm
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-24 14:06 UTC
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| AutomationDirect | CLICK PLUS C0-0x CPU firmware |
Affected:
0 , < v3.71
(custom)
|
guessed | |
| AutomationDirect | CLICK PLUS C0-1x CPU firmware |
Affected:
0 , < v3.71
(custom)
|
guessed | |
| AutomationDirect | CLICK PLUS C2-x CPU firmware |
Affected:
0 , < v3.71
(custom)
|
guessed |
Date Public
2025-09-23 16:00
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}
],
"value": "AutomationDirect recommends that users update CLICK PLUS and firmware to V3.80. https://www.automationdirect.com/support/software-downloads \n\nIf the update cannot be applied right away, the following compensating controls are recommended until the upgrade can be performed:\n\n * Network Isolation \u2013 Disconnect the CLICK PLUS PLC from external networks (e.g., the internet or corporate LAN) to reduce exposure.\n * Secure Communications \u2013 Use only trusted, dedicated internal networks or air-gapped systems for device communication.\n * Access Control \u2013 Restrict both physical and logical access to authorized personnel only.\n * Application Whitelisting \u2013 Configure whitelisting so that only trusted, pre-approved applications are allowed to run. Block any unauthorized software.\n * Endpoint Protection \u2013 Use antivirus or EDR tools and configure host-based firewalls to block unauthorized access attempts.\n * Logging \u0026 Monitoring \u2013 Enable and regularly review system logs to detect suspicious or unauthorized activity.\n * Backup \u0026 Recovery \u2013 Maintain secure, tested backups of the PLC and its configurations to minimize downtime in case of an incident.\n * Ongoing Risk Assessment \u2013 Continuously evaluate risks associated with running outdated firmware and adjust compensating measures accordingly."
}
],
"source": {
"advisory": "ICSA-25-266-01",
"discovery": "EXTERNAL"
},
"title": "AutomationDirect CLICK PLUS Use of a Broken or Risky Cryptographic Algorithm",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
"assignerShortName": "icscert",
"cveId": "CVE-2025-59484",
"datePublished": "2025-09-23T22:08:40.744Z",
"dateReserved": "2025-09-16T20:09:26.619Z",
"dateUpdated": "2025-09-24T14:08:07.973Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.