CVE-2016-4398
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 · uneditedA remote arbitrary code execution vulnerability was identified in HP Network Node Manager i (NNMi) Software 10.00, 10.01 (patch1), 10.01 (patch 2), 10.10 using Java Deserialization.
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 confidenceA remote arbitrary code execution vulnerability exists in HP Network Node Manager i (NNMi) versions 10.00, 10.01 (patch1), 10.01 (patch 2), and 10.10 due to unsafe Java deserialization. Attackers can send malicious serialized Java objects to the NNMi service, causing arbitrary code execution on the affected server without authentication.
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= 10.00= 10.01= 10.10CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/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 HP Network Node Manager i is installedCheck installed software or running processes for HP NNMi, NNMi, or related Java processes. On Windows, use Programs and Features or 'wmic product' to list installed HP software. On Linux, check /opt/HP/NNM or use 'rpm -qa | grep -i nnm'Affected if HP Network Node Manager i software is found on the system
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Determine the installed NNMi versionLocate the NNMi installation directory and check version files, or run: 'nnm -version' if available. Common paths include /opt/HP/NNM or C:\Program Files\HP\NNMAffected if The installed version is 10.00, 10.01, or 10.10 (any patch level)
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Verify the NNMi service is running and listening on networkCheck for Java processes related to NNMi and identify listening ports using 'netstat -an' or 'ss -tlnp'. NNMi typically listens on ports 80, 443, or 8080Affected if NNMi service is actively running and accepting network connections
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Assess network exposure of NNMi management interfacesReview firewall rules and network configuration to determine if NNMi ports are accessible from untrusted networks or the internet. Check if management interfaces are bound to 0.0.0.0 or any external IPAffected if NNMi management ports are exposed to untrusted networks or the internet without network segmentation
The environment is affected if HP NNMi version 10.00, 10.01, or 10.10 is installed and the service is running with network accessibility, making it exploitable via unsafe Java deserialization.
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 vendor-supplied patches for HP NNMi or upgrade to an unaffected version. If patches are unavailable, restrict network access to NNMi management interfaces using firewalls or network segmentation to limit exposure.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA6.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-4398 — 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-2016-4398 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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