CVE-2024-51330
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 · uneditedAn issue in UltiMaker Cura v.4.41 and 5.8.1 and before allows a local attacker to execute arbitrary code via Inter-process communication (IPC) mechanism between Cura application and CuraEngine processes, localhost network stack, printing settings and G-code processing and transmission components, Ultimaker 3D Printers.
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 local attacker can exploit insufficient validation in the IPC mechanism between the Cura application and CuraEngine to inject and execute arbitrary code. The vulnerability exists in how Cura handles communication via the localhost network stack when processing printing settings and G-code transmission to Ultimaker 3D printers.
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<= 5.8.1CVSS 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
- Local
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
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 the installed Cura versionOpen Ultimaker Cura and navigate to the Help > About menu, or check the installed programs list in your operating system's application manager. Locate the version number displayed.Affected if The displayed version is 5.8.1 or lower (any version up to and including 5.8.1).
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Confirm CuraEngine IPC communication is activeWhile Cura is running, monitor network connections on localhost (127.0.0.1) using system utilities like netstat or ss. Look for active TCP connections on common IPC ports used by Cura to communicate with the CuraEngine backend process.Affected if Localhost connections between Cura and CuraEngine are established and active during print job processing.
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Verify G-code transmission settingsIn Cura, open a print job and inspect the printer connection settings. Check if the printer is configured for network printing via the localhost IPC mechanism used for CuraEngine communication.Affected if The Cura application is configured to transmit G-code or printing settings to a printer through the IPC channel that lacks proper validation.
You are affected if your installed Ultimaker Cura version is 5.8.1 or lower AND the application is actively using the IPC mechanism to communicate with CuraEngine for print job processing.
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 UltiMaker Cura to a version beyond 5.8.1 that contains the patched IPC validation, or implement proper authentication/validation on the IPC channel between the Cura application and CuraEngine processes.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-51330 — 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-2024-51330 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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