CVE-2021-44046
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 out-of-bounds write vulnerability exists when reading U3D files in Open Design Alliance PRC SDK before 2022.11. An unchecked return value of a function (verifying input data from a U3D file) leads to an out-of-bounds write. An attacker can leverage this vulnerability 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 · moderate confidenceAn out-of-bounds write vulnerability exists in Open Design Alliance PRC SDK versions prior to 2022.11 when parsing U3D files. The vulnerability stems from an unchecked return value from an input validation function, which fails to properly validate data from the U3D file before processing, leading to memory corruption and potential code execution in the context of the current 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< 2022.11CVSS 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 ODA PRC SDK versionCheck the product documentation, build files, or binaries for the PRC SDK version number. Common locations include: headers (e.g., od_PrcImport.h), library file names, or version info embedded in compiled binaries using tools like strings or dumpbin.Affected if The version number is lower than 2022.11 (e.g., 2022.10, 2022.5, 2021.x, etc.) or if the version cannot be determined and is assumed to be older.
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Verify U3D file parsing capability is in useInspect application code or configuration to determine if U3D file import or processing functionality is enabled. Look for calls to PRC SDK functions that handle U3D file formats, or check if the application accepts U3D files as input.Affected if The application or integration uses PRC SDK to parse or process U3D files.
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Confirm PRC SDK is linked or bundledReview the application's dependencies to verify that the ODA PRC SDK library (typically named something like odPrcImport.lib, odPrcExport.lib, or similar) is linked or bundled within the application.Affected if The ODA PRC SDK library is present in the application's environment.
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Check for recent updates or patch statusConsult the application's release notes, changelog, or ODA product update history to determine if the PRC SDK component has been updated to version 2022.11 or later.Affected if No update to PRC SDK 2022.11 or newer has been applied.
The environment is affected if the ODA PRC SDK version is lower than 2022.11 and the application processes U3D files using the PRC SDK.
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 · scoped2022.11
Update Open Design Alliance PRC SDK to version 2022.11 or later to address the unchecked return value vulnerability in U3D file parsing.
PRC SDK 2022.11 or later
- Identify all applications or components that use the Open Design Alliance PRC SDK
- Locate the PRC SDK library file (typically named something like 'PrcSdk.dll' or 'prc_sdk') in your application dependencies
- Check the current version of the PRC SDK being used by your application
- Upgrade the PRC SDK library to version 2022.11 or later (the first fixed release)
- Rebuild and recompile any applications that link against the PRC SDK
- Test the rebuilt application with U3D file handling to verify the fix is applied
- Redeploy the updated application to all affected systems
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-44046 — 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-2021-44046 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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