How severe is CVE-2025-12852?

CVE-2025-12852 has a CVSS 4.0 base score of 8.4, rated high severity.

Is CVE-2025-12852 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-12852?

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-2025-12852 have an EU (EUVD) identifier?

Yes. CVE-2025-12852 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198129.

When was CVE-2025-12852 published?

CVE-2025-12852 was published on 2025-11-19 and last updated on 2026-06-17.

CVE-2025-12852

CVE-2025-12852 is a high-severity vulnerability with a CVSS 4.0 base score of 8.4. 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-427.

Key facts

Severity: High (CVSS 4.0 base score 8.4)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198129
Weakness: CWE-427
Published: 2025-11-19
Last modified: 2026-06-17

Description

DLL Loading vulnerability in NEC Corporation RakurakuMusen Start EX All Verisons allows a attacker to manipulate the PC environment to cause unintended operations on the user's device.

Frequently asked questions

What is CVE-2025-12852?: DLL Loading vulnerability in NEC Corporation RakurakuMusen Start EX All Verisons allows a attacker to manipulate the PC environment to cause unintended operations on the user's device.
How severe is CVE-2025-12852?: CVE-2025-12852 has a CVSS 4.0 base score of 8.4, rated high severity.
Is CVE-2025-12852 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-12852?: 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-2025-12852 have an EU (EUVD) identifier?: Yes. CVE-2025-12852 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198129.
When was CVE-2025-12852 published?: CVE-2025-12852 was published on 2025-11-19 and last updated on 2026-06-17.

References

https://jpn.nec.com/security-info/secinfo/nv25-007_en.html

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