OSV-2025-373 Heap-use-after-free in aiMesh::~aiMesh
A heap-use-after-free vulnerability in the Assimp library allows attackers to cause a denial of service or potentially execute arbitrary code via crafted 3D model files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2025-373?
OSV-2025-373 is an use after free vulnerability in assimp, published on 17 May 2025.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=417905428
Crash type: Heap-use-after-free READ 8
Crash state:
aiMesh::~aiMesh
aiScene::~aiScene
Assimp::BaseProcess::ExecuteOnScene
Which versions are affected by OSV-2025-373?
1 open source package ship an affected version, including assimp.
| Package | Affected | Fixed in |
|---|---|---|
assimp OSS-Fuzz | All versions | None |
How do I fix OSV-2025-373?
No fix has been published for OSV-2025-373 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is OSV-2025-373 being exploited?
There is no known exploitation of OSV-2025-373 in the wild and no public exploit code.