CVE-2023-32336
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 · uneditedIBM InfoSphere Information Server 11.7 is affected by a remote code execution vulnerability due to insecure deserialization in an RMI service. IBM X-Force ID: 255285.
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 · high confidenceIBM InfoSphere Information Server 11.7 contains a remote code execution vulnerability in an RMI service caused by insecure deserialization. Attackers can exploit this by sending specially crafted malicious serialized Java objects to the RMI endpoint, leading to arbitrary code execution on the target system.
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= 11.7CVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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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Identify if IBM InfoSphere Information Server is installedCheck for IBM InfoSphere Information Server processes running on the system, or look for installation directories typical of IBM software products. On Windows, check the services list for InfoSphere-related services.Affected if The software is installed on the system
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Determine the installed version of InfoSphere Information ServerLocate the version information for the installation, typically found in product documentation, installation logs, or version properties files within the IBM InfoSphere installation directory.Affected if The installed version is exactly 11.7
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Check if the RMI service is running and exposedIdentify whether the RMI service component of InfoSphere Information Server is currently running. Network scanning or service enumeration can reveal if RMI ports (typically high-numbered ports) are listening.Affected if The RMI service is running and accessible on the network
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Verify if RMI service accepts deserialized Java objectsInspect network traffic or logs for incoming connections to the RMI endpoint, particularly any suspicious serialized Java object traffic.Affected if The RMI service accepts connections and processes serialized Java objects from untrusted sources
A system is affected if IBM InfoSphere Information Server version 11.7 is installed and the RMI service is running and accessible, allowing unauthenticated attackers to send malicious serialized Java objects.
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 the IBM patch for CVE-2023-32336 or upgrade to a fixed version of InfoSphere Information Server. If immediate patching is not possible, restrict network access to the vulnerable RMI service and consider disabling the service if not required for business operations.
- Consultation8.0 h
- Implementation12.0 h
- Testing12.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $10,048.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-32336 — 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-2023-32336 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
- No weaponised exploit code, or anything meant to cause harm
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