CVE-2024-23076Network attack vector

Disputed application crash during bubble-label generation

Published Apr 10, 2024 · Updated Jul 9, 2026

Null pointer dereference in JFreeChart 1.5.4 allows attackers to crash a consuming application during bubble-label generation. The public report names BubbleXYItemLabelGenerator.java but does not disclose which value is dereferenced or how input reaches it. No attacker-controlled path has been established; the project considers no fix necessary, and multiple third parties dispute that a vulnerability exists.

CVSS severity7.5
High
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null pointer dereference in JFreeChart 1.5.4 allows attackers to crash a consuming application during bubble-label generation. The public report names BubbleXYItemLabelGenerator.java but does not disclose which value is dereferenced or how input reaches it. No attacker-controlled path has been established; the project considers no fix necessary, and multiple third parties dispute that a vulnerability exists.

The record

CVE
CVE-2024-23076
Published
Apr 10, 2024
Updated
Jul 9, 2026
Vendor
JFree
Product
JFreeChart
Classifications
CWE-476
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.5.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JFree · JFreeChartversion=1.5.4

Published CVSS scores

7.5CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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