Process crash via zero-component UV channel
Published May 31, 2026 · Updated May 31, 2026
Divide by zero in Assimp 6.0.0 through 6.0.4 allows local users to crash an exporting process via a scene with an empty UV channel. FBXExporter::WriteObjects reads mNumUVComponents for each UV channel and divides the accumulated UV-data size by that value without rejecting zero. Reachability requires local code to supply or generate an aiScene with an existing zero-component UV channel and invoke FBX export; the resulting arithmetic exception aborts that process.
Summary
What happened
Divide by zero in Assimp 6.0.0 through 6.0.4 allows local users to crash an exporting process via a scene with an empty UV channel. FBXExporter::WriteObjects reads mNumUVComponents for each UV channel and divides the accumulated UV-data size by that value without rejecting zero. Reachability requires local code to supply or generate an aiScene with an existing zero-component UV channel and invoke FBX export; the resulting arithmetic exception aborts that process.
The record
- CVE
- CVE-2026-10201
- Published
- May 31, 2026
- Updated
- May 31, 2026
- Vendor
- Open Asset Import Library
- Product
- Assimp
- Classifications
- CWE-369, CWE-404, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 31, 2026CVE publishedPublication date reported by the CVE source.
- May 31, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.0.0
- Affected versionversion=6.0.1
- Affected versionversion=6.0.2
- Affected versionversion=6.0.3
- Affected versionversion=6.0.4
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Assimp WriteObjects FPE proof of conceptproof of concept · demonstrated
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Technologies
Your stack
See the directory against your own environment.
Your stack
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