How severe is CVE-2025-3128?

CVE-2025-3128 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-3128 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-3128?

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

Does CVE-2025-3128 have an EU (EUVD) identifier?

Yes. CVE-2025-3128 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25588.

When was CVE-2025-3128 published?

CVE-2025-3128 was published on 2025-08-21 and last updated on 2026-06-17.

CVE-2025-3128

CVE-2025-3128 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25588
Weakness: CWE-78
Published: 2025-08-21
Last modified: 2026-06-17

Description

A remote unauthenticated attacker who has bypassed authentication could execute arbitrary OS commands to disclose, tamper with, destroy or delete information in Mitsubishi Electric smartRTU, or cause a denial-of service condition on the product.

Frequently asked questions

What is CVE-2025-3128?: A remote unauthenticated attacker who has bypassed authentication could execute arbitrary OS commands to disclose, tamper with, destroy or delete information in Mitsubishi Electric smartRTU, or cause a denial-of service condition on the product.
How severe is CVE-2025-3128?: CVE-2025-3128 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-3128 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-3128?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-3128 have an EU (EUVD) identifier?: Yes. CVE-2025-3128 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25588.
When was CVE-2025-3128 published?: CVE-2025-3128 was published on 2025-08-21 and last updated on 2026-06-17.

References

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