What is CVE-2018-12548?

CVE-2018-12548 is a critical-severity vulnerability in Eclipse Openj9, classified under Untrusted Pointer Dereference. CVSS score: 9.8/10. Published 2019-01-31.

How severe is CVE-2018-12548?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Eclipse Openj9

CVE-2018-12548

In OpenJDK + Eclipse OpenJ9 version 0.11.0 builds, the public jdk.crypto.jniprovider.NativeCrypto class contains public static natives which accept pointer values that are dereferenced in the native code.

Published 2019-01-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (65.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Eclipse Openj9 — versions 0.11.0
The Eclipse Foundation Openj9 — versions 0.11.0

Weakness classification (CWE)

References

bugs.eclipse.org/bugs/show_bug.cgi (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2018-12548?: CVE-2018-12548 is a critical-severity vulnerability in Eclipse Openj9, classified under Untrusted Pointer Dereference. CVSS score: 9.8/10. Published 2019-01-31.
How severe is CVE-2018-12548?: Critical severity. CVSS v3 base score is 9.8 out of 10.