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CVE-2021-28167

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-04-21 · updated 2026-06-17
• Weakness: CWE-909

Description

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.

Affected products

• The Eclipse Foundation Eclipse OpenJ9: through 0.25.0

References

• https://github.com/eclipse/openj9/issues/12016
• https://security.netapp.com/advisory/ntap-20240621-0006/
• https://github.com/eclipse/openj9/issues/12016
• https://security.netapp.com/advisory/ntap-20240621-0006/

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