CVE-2024-20922

Data modification via undisclosed JavaFX flaw

Published Jan 16, 2024 · Updated Jun 2, 2025

Integrity failure in JavaFX in Oracle Java SE 8u391 allows local users to modify Java-accessible data through untrusted sandboxed code. Oracle has not disclosed the JavaFX code locus or the operation that mishandles untrusted input. Exploitation requires a user to run untrusted Java Web Start or applet code in a client deployment that relies on the Java sandbox; trusted-code server deployments are excluded.

CVSS severity2.5
Low
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integrity failure in JavaFX in Oracle Java SE 8u391 allows local users to modify Java-accessible data through untrusted sandboxed code. Oracle has not disclosed the JavaFX code locus or the operation that mishandles untrusted input. Exploitation requires a user to run untrusted Java Web Start or applet code in a client deployment that relies on the Java sandbox; trusted-code server deployments are excluded.

The record

CVE
CVE-2024-20922
Published
Jan 16, 2024
Updated
Jun 2, 2025
Vendor
Oracle Corporation
Product
Java Platform, Standard Edition (Java SE)
Classifications
T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 2025Record 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=Oracle GraalVM Enterprise Edition:20.3.12
  2. Affected versionversion=Oracle GraalVM Enterprise Edition:21.3.8
  3. Affected versionversion=Oracle Java SE:8u391

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Java Platform, Standard Edition (Java SE)version=Oracle GraalVM Enterprise Edition:20.3.12; version=Oracle GraalVM Enterprise Edition:21.3.8; version=Oracle Java SE:8u391

Published CVSS scores

2.5OracleCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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