Vulnerability · Published Oct 15, 2026 · Assigned by VulnCheck
CVE-2026-111128Assimp through 6.0.5 NULL Pointer Dereference via Ogre Importer Bone Assignment
Medium 5.5
In plain English
A medium-severity null pointer dereference in assimp from assimp. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 90.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | assimp | no fix listed | DEBIAN-CVE-2026-111128 |
| Debian:13 | assimp | no fix listed | DEBIAN-CVE-2026-111128 |
| Debian:14 | assimp | no fix listed | DEBIAN-CVE-2026-111128 |
| Ubuntu:22.04:LTS | assimp | no fix listed | UBUNTU-CVE-2026-111128 |
| Ubuntu:24.04:LTS | assimp | no fix listed | UBUNTU-CVE-2026-111128 |
| Ubuntu:26.04:LTS | assimp | no fix listed | UBUNTU-CVE-2026-111128 |
| Ubuntu:26.10 | assimp | no fix listed | UBUNTU-CVE-2026-111128 |
Affected products (as reported)
Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References
- https://hackmd.io/@haind-pwn/assimp-ogre-mesh-bone-submesh-null-deref technical-description
- https://github.com/assimp/assimp/blob/392a658f9c271be965271f45e7521a1b80ea4392/code/AssetLib/Ogre/OgreStructs.cpp#L621-L634 technical-description
- https://github.com/assimp/assimp/blob/392a658f9c271be965271f45e7521a1b80ea4392/code/AssetLib/Ogre/OgreStructs.cpp#L914-L921 technical-description
- https://github.com/assimp/assimp product
- VulnCheck Advisory: Assimp through 6.0.5 NULL Pointer Dereference via Ogre Importer Bone Assignment third-party-advisory