CVE-2025-15666 Open Asset Import Library Assimp Model File SceneCombiner.cpp Copy heap-based overflow
A heap-based buffer overflow in Assimp's SceneCombiner allows local attackers to execute arbitrary code or cause denial of service via crafted model files.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-15666?
CVE-2025-15666 is a medium-severity memory corruption vulnerability in Open Asset Import Library Assimp, published on 1 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A security vulnerability has been detected in Open Asset Import Library Assimp up to 5.4.3. Affected by this vulnerability is the function Assimp::SceneCombiner::Copy of the file code/Common/SceneCombiner.cpp of the component Model File Handler. Such manipulation of the argument width/height leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. This and similar defects are tracked and handled via issue #6128.
Which versions are affected by CVE-2025-15666?
How do I fix CVE-2025-15666?
No fix has been published for CVE-2025-15666 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-15666 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15666 exists.
Sources
Also known as DEBIAN-CVE-2025-15666, GHSA-5hv8-2h72-hc2x, UBUNTU-CVE-2025-15666.