CVE-2021-33713
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 Utilities (All versions < V13.0.2.0). When parsing specially crafted JT files, a hash function is called with an incorrect argument leading the application to crash. An attacker could leverage this vulnerability to cause a Denial-of-Service condition in the application.
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 confidenceJT Utilities versions before V13.0.2.0 contain a vulnerability when parsing specially crafted JT files. A hash function is called with an incorrect argument during parsing, causing the application to crash and resulting in a Denial-of-Service condition.
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< 13.0.2.0CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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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Verify JT Utilities installationCheck if Siemens JT Utilities is installed on the system. Common installation paths include C:\Program Files\Siemens\JT Utilities or C:\Program Files (x86)\Siemens\JT Utilities. Look for the JT Utilities executable or application folder.Affected if JT Utilities is present on the system
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Identify installed versionLocate the version information for JT Utilities. This is typically found in the application folder as a version file, in the executable properties (right-click the .exe file and view Properties > Details), or through the program's About/Help menu.Affected if Unable to determine the version number
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Compare against affected rangeCompare your installed version to the affected range: versions before V13.0.2.0. The vulnerable versions are any release earlier than 13.0.2.0.Affected if Installed version is lower than 13.0.2.0 (for example, 13.0.1.x, 12.x, or earlier releases)
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Assess exposure to JT file parsingDetermine if the system processes JT files from untrusted or external sources. The vulnerability triggers when parsing specially crafted JT files.Affected if Affected version is installed AND the system is used to open JT files from unknown or untrusted sources
You are affected if Siemens JT Utilities version below 13.0.2.0 is installed and you open JT files from untrusted or specially crafted sources.
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 data13.0.2.0
Upgrade JT Utilities to version V13.0.2.0 or later. Avoid opening untrusted or specially crafted JT files from unknown sources until the update is applied.
- Consultation4.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-33713 — 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-2021-33713 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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- Version or environment caveats, and links to real fixes
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