CVE-2011-3566
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 Oracle WebLogic Server component in Oracle Fusion Middleware 9.2.4, 10.0.2, 10.3.3, 10.3.4, and 10.3.5 allows remote attackers to affect availability via unknown vectors related to Web Container.
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 confidenceCVE-2011-3566 is an unspecified remote availability vulnerability in the Oracle WebLogic Server Web Container affecting versions 9.2.4, 10.0.2, 10.3.3, 10.3.4, and 10.3.5. The vulnerability allows remote attackers to impact service availability through unknown vectors in the Web Container component, with a CVSS base score of 5 (Medium).
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= 9.2.4= 10.0.2= 10.3.3= 10.3.4= 10.3.5CVSS 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
- Low
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/A:P
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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Locate Oracle WebLogic Server installationCheck for WebLogic installation directories such as $ORACLE_HOME, /opt/bea, /u01/oracle, or search for 'weblogic.jar' files. Common paths include /bea/weblogic92 or /Oracle/Middleware. Use command: find / -name 'weblogic.jar' 2>/dev/nullAffected if WebLogic Server is found on the system
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Identify WebLogic Server versionCheck the version file or manifest within the WebLogic installation. Common locations: BEA_HOME/.productVersion, or examine the weblogic.Server classpath. Run: java -jar weblogic.jar -help 2>&1 | head -20, or check README files in the installation directoryAffected if Version matches 9.2.4, 10.0.2, 10.3.3, 10.3.4, or 10.3.5 exactly
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Verify Web Container component is activeCheck if the WebLogic Web Container is deployed and running. Examine config.xml for <WebContainer> configuration, or access the WebLogic Administration Console on port 7001 (default) and navigate to Deployments > Web Application ModulesAffected if Web Container component is enabled and accessible on the network
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Confirm network exposureDetermine if the Web Container HTTP port (default 7001 for admin, 80/8080 for managed servers) is exposed to untrusted networks. Check firewall rules: iptables -L -n | grep 7001, or review network binding configurations in config.xmlAffected if Web Container HTTP port is accessible from untrusted or public networks
The environment is affected if Oracle WebLogic Server versions 9.2.4, 10.0.2, 10.3.3, 10.3.4, or 10.3.5 are installed with the Web Container component exposed to network access.
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 dataApply Oracle Critical Patch Updates for WebLogic Server or upgrade to a supported version, as Oracle no longer supports the affected 9.x and early 10.x versions. Implement network-level filtering to limit exposure to untrusted networks.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2011-3566 — 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-2011-3566 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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