CVE-2012-1543
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedUnspecified vulnerability in the JavaFX component in Oracle Java SE JavaFX 2.2.4 and earlier allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors, a different vulnerability than other CVEs listed in the February 2013 CPU. NOTE: the previous information is from the February 2013 CPU. Oracle has not commented on claims from a third party that the issue is due to an invalid type cast in the JSObject class.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA high-severity vulnerability in the JavaFX component (versions 2.2.4 and earlier) in Oracle Java SE allows remote attackers to achieve full impact on confidentiality, integrity, and availability. Third-party analysis suggests the issue stems from an invalid type cast in the JSObject class, which could enable arbitrary code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 2.2.4= 2.0= 2.0.2= 2.0.3= 2.1= 2.2= 2.2.3CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- High
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:H/Au:N/C:C/I:C/A:C
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check if JavaFX is installedOn Windows, check for javafx*.dll in the JRE/bin directory or look for JavaFX runtime in Program Files. On Linux, check for javafx* packages via package manager (dpkg -l | grep javafx or rpm -qa | grep javafx) or look in $JAVA_HOME/jre/lib folder for javafx*.jar files.Affected if JavaFX runtime files are present on the system
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Determine the installed JavaFX versionRun 'java -version' to get the Java version, then check the JavaFX runtime version by examining the javafx.properties file typically found in the lib folder of the JRE, or use 'java -verbose -version' to see loaded JavaFX components. On some systems, check the JAR manifest in jfxrt.jar located in $JAVA_HOME/jre/lib/Affected if The version is 2.2.4 or earlier, or specifically 2.0, 2.0.2, 2.0.3, 2.1, 2.2, or 2.2.3
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Identify if JSObject class is in useSearch application codebases and deployed JAR/WAR files for imports or references to netscape.javascript.JSObject. Grep for 'netscape.javascript.JSObject' or 'JSObject' in source files and JAR contents. Also check if applications load the jfxrt.jar which contains the JSObject class.Affected if The application code or runtime loads/uses the JSObject class from the JavaFX runtime
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Verify Java deployment configurationCheck Java Control Panel or deployment.configuration file for JavaFX runtime settings. On Windows, examine the JavaFX runtime configuration in the Java deployment home folder. Review any Java Applet or Web Start configurations that may invoke JavaFX components.Affected if JavaFX is enabled in Java deployment settings and applications can load JavaFX runtime
The system is affected if JavaFX version 2.2.4 or earlier is installed AND applications utilize the JSObject class, allowing the invalid type cast vulnerability to be triggered.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade JavaFX/Java SE to versions that include the February 2013 CPU patch or later. Apply the latest Critical Patch Updates and consider disabling JavaFX in untrusted contexts until patched.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-1543 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2012-1543 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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