CVE-2023-29053
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 vulnerability has been identified in JT Open (All versions < V11.3.2.0), JT Utilities (All versions < V13.3.0.0). The affected applications contain an out of bounds read past the end of an allocated structure while parsing specially crafted JT files. This could allow an attacker to execute code in the context of the current process.
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 memory corruption vulnerability exists in JT Open and JT Utilities where specially crafted JT files trigger an out-of-bounds read beyond allocated memory structures during parsing. This bounds violation allows reading arbitrary memory, which can potentially be weaponized for code execution in the context of the vulnerable application process.
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< 11.3.2.0< 13.3.0.0CVSS 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
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 installed JT Open Toolkit versionLocate the JT Open Toolkit installation directory (commonly under Program Files/Siemens or the application's bin folder) and check the version property of the main DLL or executable file (often named JTOpenCore.dll, jtopen*.jar, or similar). On Windows, right-click the file, select Properties, and view the Details tab for version information.Affected if The displayed version is earlier than 11.3.2.0
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Identify installed JT Utilities versionLocate the JT Utilities installation directory and check the version property of the main application executable or DLL (often named JTUtilities.exe, jtutilities*.jar, or similar). View the file version in the Properties Details tab.Affected if The displayed version is earlier than 13.3.0.0
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Check for running JT parsing processesOpen Task Manager or use command 'tasklist' to identify processes related to JT Open Toolkit or JT Utilities that are currently running (such as java.exe, jtopen.exe, or proprietary Siemens processes).Affected if A JT-related process is running and the software version cannot be verified or is confirmed vulnerable
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Inspect application logs for JT file processingReview application logs, event logs, or debug output from the JT processing software to identify recent JT file parsing activity. Check for any error messages or exceptions related to JT file handling.Affected if The application processes JT files and the software version is vulnerable according to version checks
You are affected if Siemens JT Open Toolkit version is below 11.3.2.0 or JT Utilities version is below 13.3.0.0, and the software is used to parse JT files.
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.
dbcve · scoped11.3.2.013.3.0.0
Update JT Open to version V11.3.2.0 or later and JT Utilities to version V13.3.0.0 or later to obtain the vendor patch. Until patched, avoid opening JT files from untrusted sources.
Jt Open Toolkit V11.3.2.0 or Jt Utilities V13.3.0.0
- Identify the currently installed version of Jt Open Toolkit or Jt Utilities
- Navigate to the Siemens cert-portal or official JT Open download page to obtain the fixed version
- Download Jt Open Toolkit version 11.3.2.0 or Jt Utilities version 13.3.0.0, depending on which product is in use
- Install the updated version following the vendor's installation documentation
- Verify the installation was successful and the version number matches the fixed release
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-29053 — 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-2023-29053 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
- No spam, self-promotion, credentials, or personal data