CVE-2025-2757 Open Asset Import Library Assimp MD5 File MD5Parser.cpp AI_MD5_PARSE_STRING_IN_QUOTATION heap-based overflow
A heap-based buffer overflow in Assimp's MD5 parser allows remote attackers to execute arbitrary code or cause denial of service via crafted files.
- 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
- Available
What is CVE-2025-2757?
CVE-2025-2757 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 classified as critical was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function AI_MD5_PARSE_STRING_IN_QUOTATION of the file code/AssetLib/MD5/MD5Parser.cpp of the component MD5 File Handler. The manipulation of the argument data leads to heap-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-2757?
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-2025-2757?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-2757 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-2757 exists.
Other vulnerabilities in Open Asset Import Library Assimp
Sources
Also known as DEBIAN-CVE-2025-2757, GHSA-4p6w-747g-444c, PYSEC-2025-168, UBUNTU-CVE-2025-2757.