How severe is CVE-2025-66384?

CVE-2025-66384 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2025-66384 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-66384?

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-2025-66384 have an EU (EUVD) identifier?

Yes. CVE-2025-66384 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-199869.

When was CVE-2025-66384 published?

CVE-2025-66384 was published on 2025-11-28 and last updated on 2026-06-17.

CVE-2025-66384

CVE-2025-66384 is a high-severity vulnerability with a CVSS 3.x base score of 8.2. 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-684.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-199869
Weakness: CWE-684
Published: 2025-11-28
Last modified: 2026-06-17

Description

app/Controller/EventsController.php in MISP before 2.5.24 has invalid logic in checking for uploaded file validity, related to tmp_name.

Frequently asked questions

What is CVE-2025-66384?: app/Controller/EventsController.php in MISP before 2.5.24 has invalid logic in checking for uploaded file validity, related to tmp_name.
How severe is CVE-2025-66384?: CVE-2025-66384 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2025-66384 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-66384?: 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-2025-66384 have an EU (EUVD) identifier?: Yes. CVE-2025-66384 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-199869.
When was CVE-2025-66384 published?: CVE-2025-66384 was published on 2025-11-28 and last updated on 2026-06-17.

References

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