CVE-2026-111128
Assimp through 6.0.5 NULL Pointer Dereference via Ogre Importer Bone Assignment
- State
- Published
- Severity
- 6.8 Medium
- Published
- Oct 15, 2026
- Updated
- Oct 15, 2026
- Reserved
- Oct 15, 2026
Description
Assimp through 6.0.5 contains a NULL pointer dereference vulnerability in the Ogre3D importer that allows attackers to crash applications via unvalidated bone indices in OgreStructs.cpp. Attackers can supply a crafted .mesh and .skeleton file referencing a missing bone, causing BoneById() to return null and crash the host process.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-476 NULL Pointer Dereference
Affected Products
| Product | Versions |
|---|---|
assimpassimp |
|
References
- https://hackmd.io/@haind-pwn/assimp-ogre-mesh-bone-submesh-null-dereftechnical-description
- https://github.com/assimp/assimp/blob/392a658f9c271be965271f45e7521a1b80ea4392/code/AssetLib/Ogre/OgreStructs.cpp#L621-L634technical-description
- https://github.com/assimp/assimp/blob/392a658f9c271be965271f45e7521a1b80ea4392/code/AssetLib/Ogre/OgreStructs.cpp#L914-L921technical-description
- https://github.com/assimp/assimpproduct
- VulnCheck Advisory: Assimp through 6.0.5 NULL Pointer Dereference via Ogre Importer Bone Assignmentthird-party-advisory
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