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CVE-2025-59484

AutomationDirect CLICK PLUS Use of a Broken or Risky Cryptographic Algorithm

HIGH
8.3
CVSS Score
Published: September 23, 2025 at 10:08 PM UTC
Updated: October 18, 2026 at 09:10 PM UTC
3 products affected across 1 vendorCLICK PLUS C2-x CPU firmwareCLICK PLUS C0-1x CPU firmwareClick Plus

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Severity
HIGH8.3
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Click Plus· Automationdirect
90%
0 ≤ v < v3.710
Affected range stops below v3.71, so it looks safe — our inference, not a vendor statement
CLICK PLUS C0-1x CPU firmware· Automationdirect
90%
0 ≤ v < v3.710
CLICK PLUS C2-x CPU firmware· Automationdirect
90%
0 ≤ v < v3.710

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://www.cisa.gov/news-events/ics-advisories/icsa-25-266-01
Source: cverecord
https://www.automationdirect.com/support/software-downloads

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.3HIGHicscert
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-327

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