Open Asset Import Library Assimp 17c12da 3DGS MDL7 Bone Transformation Key Parser MDLLoader.cpp ParseBoneTrafoKeys_3DGS_MDL7 transmatrix_count/pcBoneTransforms buffer overflow

Summaryinfo

A vulnerability described as critical has been identified in Open Asset Import Library Assimp Assimp 17c12da. The impacted 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 results in buffer overflow. This vulnerability is known as CVE-2026-19999. It is possible to launch the attack remotely. Furthermore, an exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Open Asset Import Library Assimp Assimp 17c12da. It has been classified as critical. Affected 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 with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-19999. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept.

Applying the patch 50d767984e78d51b53e2020fdf0967fd624bc377 is able to eliminate this problem. The bugfix is ready for download at github.com.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Software Library

Vendor

• Open Asset Import Library Assimp

Name

• Assimp

Version

• 17c12da

License

• open-source

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #873132: Assimp commit 17c12da Heap-based Buffer Overflow (by TYGLS)

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