What’s Vulnerable › Vulnerabilities

CVE-2026-111128: Assimp through 6.0.5 NULL Pointer Dereference via Ogre Importer Bone Assignment

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-15 · updated 2026-10-16
• Weakness: CWE-476

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.

Affected products

• Open Asset Import Library Assimp: through 6.0.5

References

• https://github.com/assimp/assimp
• https://github.com/assimp/assimp/blob/392a658f9c271be965271f45e7521a1b80ea4392/code/AssetLib/Ogre/OgreStructs.cpp#L621-L634
• https://github.com/assimp/assimp/blob/392a658f9c271be965271f45e7521a1b80ea4392/code/AssetLib/Ogre/OgreStructs.cpp#L914-L921
• https://hackmd.io/@haind-pwn/assimp-ogre-mesh-bone-submesh-null-deref
• https://www.vulncheck.com/advisories/assimp-through-6.0.5-null-pointer-dereference-via-ogre-importer-bone-assignment
• https://hackmd.io/@haind-pwn/assimp-ogre-mesh-bone-submesh-null-deref

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