CVE-2025-2753 Open Asset Import Library Assimp LWS File LWSLoader.cpp MergeScenes out-of-bounds
A remote attacker can trigger an out-of-bounds read in Assimp via a malicious LWS file, potentially causing denial of service or information disclosure.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-2753?
CVE-2025-2753 is a medium-severity memory corruption vulnerability in Open Asset Import Library Assimp, published on 25 Mar 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability was found in Open Asset Import Library Assimp 5.4.3. It has been classified as critical. Affected is the function SceneCombiner::MergeScenes of the file code/AssetLib/LWS/LWSLoader.cpp of the component LWS File Handler. The manipulation leads to out-of-bounds read. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-2753?
1 open source package ship an affected version, including pyassimp. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
pyassimp PyPI | All versions to 5.4.3 | None |
Products include Assimp Assimp.
How do I fix CVE-2025-2753?
No fix has been published for CVE-2025-2753 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-2025-2753 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-2753 exists.
Other vulnerabilities in Open Asset Import Library Assimp
Sources
Also known as DEBIAN-CVE-2025-2753, GHSA-6gmq-j827-jv97, PYSEC-2025-164, UBUNTU-CVE-2025-2753.