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JdkApplication · Oracle

CVE-2015-4883

HIGH · 10.0 CVSS v2.0 Published 2015-10-21
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click Patch available

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 · unedited
Unspecified vulnerability in Oracle Java SE 6u101, 7u85, and 8u60, and Java SE Embedded 8u51, allows remote attackers to affect confidentiality, integrity, and availability via vectors related to RMI, a different vulnerability than CVE-2015-4860.

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 confidence

Unspecified vulnerability in Oracle Java RMI (Remote Method Invocation) component allows remote attackers to execute arbitrary code with full system impact, affecting confidentiality, integrity, and availability. The CVSS 10 score indicates network-exploitable, unauthenticated remote code execution with complete system compromise.

MitigationUpgrade Java to versions beyond the vulnerable releases (6u101, 7u85, 8u60). If immediate patching is not feasible, restrict network access to RMI services and disable Java RMI if not required by applications.

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
JdkApplication
Affected:= 1.6.0= 1.7.0= 1.8.0
JreApplication
Affected:= 1.6.0= 1.7.0= 1.8.0

CVSS 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
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Java version
    Run 'java -version' or check the Java installation directory for version info. On Windows, also check the registry under HKLM\SOFTWARE\JavaSoft\Java Development Kit\CurrentVersion
    Affected if The version reported is 1.6.0, 1.7.0, or 1.8.0 (exact matches to the vulnerable releases)
  2. Check for running Java RMI registry
    Look for Java processes listening on port 1099 (default RMI registry port) or other custom RMI ports. Use 'netstat -an | grep 1099' or 'lsof -i :1099' on Linux/Unix, or 'netstat -ano | findstr :1099' on Windows
    Affected if An RMI registry process is bound to a network interface and listening on RMI ports
  3. Identify Java applications using RMI
    Review deployed applications for RMI usage. Check application configuration files (such as web.xml, applicationContext.xml, or custom property files) for 'java.rmi' references or Remote objects
    Affected if Applications are configured to expose Remote objects or use RMI for distributed communication
  4. Verify RMI network exposure
    Check firewall rules and network configuration to determine if RMI ports are accessible from untrusted networks. Review any exposed network interfaces in Java network properties
    Affected if RMI services are bound to non-localhost interfaces and accessible from external networks

You are affected if you run Java version 1.6.0, 1.7.0, or 1.8.0 AND have Java RMI services enabled and network-accessible in your environment.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch www.oracle.com →
Interim mitigation

Upgrade Java to versions beyond the vulnerable releases (6u101, 7u85, 8u60). If immediate patching is not feasible, restrict network access to RMI services and disable Java RMI if not required by applications.

Recommended fix High confidence

Java SE 6u101 / 7u85 / 8u60 (depending on which major version line you are on)

  1. Identify the current Java version installed (java -version)
  2. Download the appropriate fixed JDK/JRE version from Oracle's official download page: Java SE 6u101, 7u85, 8u60, or Java SE Embedded 8u51
  3. Install the updated Java version following Oracle's installation instructions for your operating system
  4. Update JAVA_HOME environment variable to point to the new installation directory
  5. Update any PATH entries to ensure the new Java version is used by default
  6. Restart any running applications or services that use Java
  7. Verify the installation by running 'java -version' and confirming it shows the patched version
  8. Test critical applications to ensure compatibility with the new Java version
Caveat Upgrading Java major versions (e.g., 1.6 to 1.8) may introduce compatibility issues with existing applications; test thoroughly before production deployment

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Jdk Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing8.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,080
Get the patch applied

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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2015-4883 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data