What is CVE-2021-3717?

CVE-2021-3717 is a high-severity security vulnerability in org.wildfly.core:wildfly-core-parent (maven), affecting versions < 17.0. It is fixed in 17.0.

How severe is CVE-2021-3717?

CVE-2021-3717 has a CVSS score of 7.8 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Which versions of org.wildfly.core:wildfly-core-parent are affected by CVE-2021-3717?

org.wildfly.core:wildfly-core-parent (maven) versions < 17.0 is affected.

Is there a fix for CVE-2021-3717?

Yes. CVE-2021-3717 is fixed in 17.0. Upgrade to this version or later.

Is CVE-2021-3717 exploitable, and should I be worried?

Whether CVE-2021-3717 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether CVE-2021-3717 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

CVE-2021-3717

Q: How severe is CVE-2021-3717?

CVE-2021-3717 has a CVSS score of 7.8 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Q: Which versions of org.wildfly.core:wildfly-core-parent are affected by CVE-2021-3717?

org.wildfly.core:wildfly-core-parent (maven) versions < 17.0 is affected.

Q: Is there a fix for CVE-2021-3717?

Yes. CVE-2021-3717 is fixed in 17.0. Upgrade to this version or later.

Q: Is CVE-2021-3717 exploitable, and should I be worried?

Whether CVE-2021-3717 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether CVE-2021-3717 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix CVE-2021-3717?

Upgrade org.wildfly.core:wildfly-core-parent to 17.0 or later.

Summary

Wildfly-Core user account mismanagement

A flaw was found in Wildfly. An incorrect JBOSS_LOCAL_USER challenge location when using the elytron configuration may lead to JBOSS_LOCAL_USER access to all users on the machine. The highest threat from this vulnerability is to confidentiality, integrity, and availability. This flaw affects wildfly-core versions prior to 17.0.

Impact

CVE-2021-3717 has a CVSS score of 7.8 (High). The vector is requires local access, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (17.0); upgrading removes the vulnerable code path.

Affected versions

org.wildfly.core:wildfly-core-parent (< 17.0)

Security releases

org.wildfly.core:wildfly-core-parent → 17.0 (maven)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade org.wildfly.core:wildfly-core-parent to 17.0 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is CVE-2021-3717? CVE-2021-3717 is a high-severity security vulnerability in org.wildfly.core:wildfly-core-parent (maven), affecting versions < 17.0. It is fixed in 17.0.
How severe is CVE-2021-3717? CVE-2021-3717 has a CVSS score of 7.8 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
Which versions of org.wildfly.core:wildfly-core-parent are affected by CVE-2021-3717? org.wildfly.core:wildfly-core-parent (maven) versions < 17.0 is affected.
Is there a fix for CVE-2021-3717? Yes. CVE-2021-3717 is fixed in 17.0. Upgrade to this version or later.
Is CVE-2021-3717 exploitable, and should I be worried? Whether CVE-2021-3717 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether CVE-2021-3717 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix CVE-2021-3717? Upgrade org.wildfly.core:wildfly-core-parent to 17.0 or later.