CVE-2021-20250

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-05-13 · updated 2026-06-17
Weakness: CWE-200

Description

A flaw was found in wildfly. The JBoss EJB client has publicly accessible privileged actions which may lead to information disclosure on the server it is deployed on. The highest threat from this vulnerability is to data confidentiality.

Affected products

RedHat Jboss-Ejb-Client: before 4.0.39 — fixed in 4.0.39
RedHat Jboss Enterprise Application Platform Expansion Pack: all versions

How to fix

Upgrade to a fixed version: RedHat Jboss-Ejb-Client 4.0.39. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1929479
https://bugzilla.redhat.com/show_bug.cgi?id=1929479

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