What is CVE-2023-40313?

CVE-2023-40313 is a high-severity code injection vulnerability in org.opennms:opennms-base-assembly (maven), affecting versions < 32.0.2. It is fixed in 32.0.2. Untrusted input is evaluated as executable code within the application's runtime environment.

How severe is CVE-2023-40313?

CVE-2023-40313 has a CVSS score of 7.1 (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.opennms:opennms-base-assembly are affected by CVE-2023-40313?

org.opennms:opennms-base-assembly (maven) versions < 32.0.2 is affected.

Is there a fix for CVE-2023-40313?

Yes. CVE-2023-40313 is fixed in 32.0.2. Upgrade to this version or later.

Is CVE-2023-40313 exploitable, and should I be worried?

Whether CVE-2023-40313 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-2023-40313 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-2023-40313 in org.opennms:opennms-base-assembly

Q: How severe is CVE-2023-40313?

CVE-2023-40313 has a CVSS score of 7.1 (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.opennms:opennms-base-assembly are affected by CVE-2023-40313?

org.opennms:opennms-base-assembly (maven) versions < 32.0.2 is affected.

Q: Is there a fix for CVE-2023-40313?

Yes. CVE-2023-40313 is fixed in 32.0.2. Upgrade to this version or later.

Q: Is CVE-2023-40313 exploitable, and should I be worried?

Whether CVE-2023-40313 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-2023-40313 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-2023-40313?

Upgrade org.opennms:opennms-base-assembly to 32.0.2 or later.

Summary

OpenNMS vulnerable to remote code execution

A BeanShell interpreter in remote server mode runs in OpenNMS Horizon versions earlier than 32.0.2 and in related Meridian versions which could allow arbitrary remote Java code execution. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

Impact

Untrusted input is evaluated as executable code within the application's runtime environment. Typical impact: arbitrary code execution within the application's privilege context.

CVE-2023-40313 has a CVSS score of 7.1 (High). The vector is reachable from an adjacent network, no 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 (32.0.2); upgrading removes the vulnerable code path.

Affected versions

org.opennms:opennms-base-assembly (< 32.0.2)

Security releases

org.opennms:opennms-base-assembly → 32.0.2 (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.opennms:opennms-base-assembly to 32.0.2 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-2023-40313? CVE-2023-40313 is a high-severity code injection vulnerability in org.opennms:opennms-base-assembly (maven), affecting versions < 32.0.2. It is fixed in 32.0.2. Untrusted input is evaluated as executable code within the application's runtime environment.
How severe is CVE-2023-40313? CVE-2023-40313 has a CVSS score of 7.1 (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.opennms:opennms-base-assembly are affected by CVE-2023-40313? org.opennms:opennms-base-assembly (maven) versions < 32.0.2 is affected.
Is there a fix for CVE-2023-40313? Yes. CVE-2023-40313 is fixed in 32.0.2. Upgrade to this version or later.
Is CVE-2023-40313 exploitable, and should I be worried? Whether CVE-2023-40313 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-2023-40313 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-2023-40313? Upgrade org.opennms:opennms-base-assembly to 32.0.2 or later.