CVE-2026-19999
Open Asset Import Library Assimp 3DGS MDL7 Bone Transformation Key MDLLoader.cpp ParseBoneTrafoKeys_3DGS_MDL7 buffer overflow
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 17, 2026
- Updated
- Aug 19, 2026
- Reserved
- Aug 16, 2026
Description
A security vulnerability has been detected in Open Asset Import Library Assimp Assimp 17c12da. The affected element is the function Assimp::MDLImporter::ParseBoneTrafoKeys_3DGS_MDL7 of the file code/AssetLib/MDL/MDLLoader.cpp of the component 3DGS MDL7 Bone Transformation Key Parser. The manipulation of the argument transmatrix_count/pcBoneTransforms leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is 50d767984e78d51b53e2020fdf0967fd624bc377. It is recommended to apply a patch to fix this issue.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
AssimpOpen Asset Import Library Assimp |
|
References
- VDB-391200 | Open Asset Import Library Assimp 3DGS MDL7 Bone Transformation Key MDLLoader.cpp ParseBoneTrafoKeys_3DGS_MDL7 buffer overflowvdb-entrytechnical-description
- VDB-391200 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-19999 | CVE Analysis and Reportthird-party-advisory
- Submit #873132 | Assimp commit 17c12da Heap-based Buffer Overflowthird-party-advisory
- https://github.com/assimp/assimp/issues/6633issue-tracking
- https://github.com/assimp/assimp/pull/6759issue-trackingpatch
- https://github.com/user-attachments/files/27429337/poc.zipexploit
- https://github.com/assimp/assimp/commit/50d767984e78d51b53e2020fdf0967fd624bc377patch
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