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Vulnerabilities

Vulnerability · CVE-2025-55069

A predictable seed in pseudo-random number generator vulnerability has been discovered in firmware version 3.60 of the Click Plus PLC.

Published Sep 23, 2025 · catalog updated Sep 24, 2025 · AutomationDirect CLICK PLUS C0-0x CPU firmware

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-55069. EPSS is 0.31%. Act only if a listed version of AutomationDirect CLICK PLUS C0-0x CPU firmware is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.31%
Remediation
Version ranges on file
Affected products
vendor AutomationDirect CLICK PLUS C0-0x CPU firmware 0 <v3.71

A predictable seed in pseudo-random number generator vulnerability has been discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software implements a predictable seed for its pseudo-random number generator, which compromises the security of the generated private keys.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor AutomationDirect CLICK PLUS C0-0x CPU firmware 0 <v3.710 <v3.71

How to fix CVE-2025-55069

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-55069. EPSS is 0.31%. Act only if a listed version of AutomationDirect CLICK PLUS C0-0x CPU firmware is installed.

Which versions are affected?

Compare what you have installed with AutomationDirect CLICK PLUS C0-0x CPU firmware 0 <v3.71 0 <v3.71. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.31%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 23, 2025 · EUVD

    Detected

    A predictable seed in pseudo-random number generator vulnerability has been discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software implements a predictable seed for its pseudo-random number generator, which compromises the security of the generated private keys.

  2. Sep 24, 2025 · EUVD

    Updated

    A predictable seed in pseudo-random number generator vulnerability has been discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software implements a predictable seed for its pseudo-random number generator, which compromises the security of the generated private keys.

Sources

  • CVE.orgVulnerability recordCVE-2025-55069

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-55069

    30-day exploitation probability 0.31%

    first.org
  • EUVDVulnerability recordEUVD-2025-30936

    A predictable seed in pseudo-random number generator vulnerability has been discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software implements a predictable seed for its pseudo-random number generator, which compromises th

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 29, 2026
  • CVE.orgOct 23, 2026
  • EUVDOct 23, 2026