Vulnerability record · CVE-2021-28167 · published 21 April 2021

CVE-2021-28167: Eclipse openj9 vulnerability

Eclipse · Openj9

In Eclipse Openj9 to version 0.25.0, usage of the jdk.internal.reflect.ConstantPool API causes the JVM in some cases to pre-resolve certain constant pool entries. This allows a user to call static methods or access static members without running the class initialization method, and may allow a user to observe uninitialized values.

6.5 CVSS 3.1 Medium EPSS 1.1% · top 35.0% CWE-909 · CWE-909

6.5CVSS 3.1 base score, v2 6.4

1.1%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Openj9 Eclipse

References

Link	Tags
https://github.com/eclipse/openj9/issues/12016	ExploitPatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20240621-0006/
https://github.com/eclipse/openj9/issues/12016	ExploitPatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20240621-0006/

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-28167), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.