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Fencer Vulns
medium 5.3

CVE-2025-58069 json

AutomationDirect CLICK PLUS Use of Hard-coded Cryptographic Key

published 2025-09-23 13 mo ago modified 2026-10-18 21 d ago also EUVD-2025-30938

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits
0
none known

Summary

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.

Patch / fix

  • AutomationDirect CLICK PLUS C0-0x CPU firmware v3.71
  • AutomationDirect CLICK PLUS C0-1x CPU firmware v3.71
  • AutomationDirect CLICK PLUS C2-x CPU firmware v3.71

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-266-01 updated cvss 5.3

AutomationDirect CLICK PLUS

  • AutomationDirect CLICK PLUS C0-0x CPU firmware <v3.71 AutomationDirect CLICK PLUS C0-1x CPU firmware <v3.71 AutomationDirect CLICK PLUS C2-x CPU firmware <v3.71
    affected: mitigation “AutomationDirect recommends that users update CLICK PLUS and firmware to V3.80.” automationdirect.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
13 mo ago

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • AutomationDirect CLICK PLUS C0-0x CPU firmware
  • AutomationDirect CLICK PLUS C0-1x CPU firmware
  • AutomationDirect CLICK PLUS C2-x CPU firmware

Classification

Weakness
  • CWE-321 Use of Hard-coded Cryptographic Key

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.