How severe is CVE-2025-55069?

CVE-2025-55069 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2025-55069 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-55069?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-55069 have an EU (EUVD) identifier?

Yes. CVE-2025-55069 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30936.

When was CVE-2025-55069 published?

CVE-2025-55069 was published on 2025-09-23 and last updated on 2026-06-17.

CVE-2025-55069

CVE-2025-55069 is a high-severity vulnerability with a CVSS 3.x base score of 8.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-337.

Key facts

Severity: High (CVSS 3.x base score 8.3)
CVSS v4: 8.7
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-30936
Weakness: CWE-337
Published: 2025-09-23
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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. 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.
How severe is CVE-2025-55069?: CVE-2025-55069 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2025-55069 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-55069?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-55069 have an EU (EUVD) identifier?: Yes. CVE-2025-55069 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30936.
When was CVE-2025-55069 published?: CVE-2025-55069 was published on 2025-09-23 and last updated on 2026-06-17.

References

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