CVE-2026-47030

Analyzed Analyzed - Analysis Complete

JavaFX Memory Integrity Flaw in Oracle Java SE

Publication date: 2026-07-21

Last updated on: 2026-08-03

Assigner: Oracle

Description

Vulnerability in Oracle Java SE (component: JavaFX). The supported version that is affected is Oracle Java SE: 8u491. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 3.1 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-21

Last Modified

2026-08-03

Generated

2026-08-11

AI Q&A

2026-07-22

EPSS Evaluated

2026-08-10

NVD

CVE-2026-47030

EUVD

EUVD-2026-46516

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	jre	1.8.0
oracle	jdk	1.8.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Java SE specifically affecting version 8u491. It involves the JavaFX component and allows an unauthenticated attacker to potentially modify data in Oracle Java SE through network access. Exploitation requires user interaction and targets client-side Java deployments like sandboxed Java Web Start or applets.

Detection Guidance

Detection involves checking for Oracle Java SE version 8u491 or affected deployments. Inspect installed Java versions using commands like 'java -version' or 'where java' on Windows/Linux. Review Java Web Start or applet applications running in sandboxed environments.

Impact Analysis

If you use affected Java SE versions in client environments like browsers or desktop apps, an attacker could trick you into running malicious code that modifies data. Servers are not affected as they typically run trusted code.

Compliance Impact

This vulnerability allows unauthorized modification of data, which could impact integrity controls required by GDPR and HIPAA. However, the low CVSS score and requirement for human interaction limit its real-world compliance risk.

Mitigation Strategies

Upgrade Oracle Java SE to a version beyond 8u491. Disable Java Web Start and sandboxed Java applets if not required. Restrict untrusted code execution in client environments. Monitor Oracle's security advisories for patches.

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