How severe is CVE-2025-4447?

CVE-2025-4447 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-4447 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4447?

CVE-2025-4447 affects Eclipse Openj9. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4447?

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-2025-4447 have an EU (EUVD) identifier?

Yes. CVE-2025-4447 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14192.

When was CVE-2025-4447 published?

CVE-2025-4447 was published on 2025-05-09 and last updated on 2026-06-17.

CVE-2025-4447

CVE-2025-4447 is a high-severity vulnerability in Eclipse Openj9 with a CVSS 3.x base score of 7.8. 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-121.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 7.0
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14192
Weakness: CWE-121
Affected product: Eclipse Openj9
Published: 2025-05-09
Last modified: 2026-06-17

Description

In Eclipse OpenJ9 versions up to 0.51, when used with OpenJDK version 8 a stack based buffer overflow can be caused by modifying a file on disk that is read when the JVM starts.

Frequently asked questions

What is CVE-2025-4447?: In Eclipse OpenJ9 versions up to 0.51, when used with OpenJDK version 8 a stack based buffer overflow can be caused by modifying a file on disk that is read when the JVM starts.
How severe is CVE-2025-4447?: CVE-2025-4447 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-4447 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4447?: CVE-2025-4447 affects Eclipse Openj9. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4447?: 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-2025-4447 have an EU (EUVD) identifier?: Yes. CVE-2025-4447 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14192.
When was CVE-2025-4447 published?: CVE-2025-4447 was published on 2025-05-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:eclipse:openj9:*:*:*:*:*:*:*:*

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