Buffer overflow in Eclipse Openj9
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (12.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Eclipse Openj9
- Eclipse Foundation Openj9 — versions 0.8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.eclipse.org/security/cve-assignement/-/issues/61 (Issue Tracking, Vendor Advisory)
- github.com/eclipse-openj9/openj9/pull/21762 (Issue Tracking)
Frequently asked questions
- What is CVE-2025-4447?
- CVE-2025-4447 is a high-severity vulnerability in Eclipse Openj9, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2025-05-09.
- How severe is CVE-2025-4447?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2025-4447 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.