CVE-2025-5166
A vulnerability was found in Open Asset Import Library Assimp 5.4.3.
Does this matter?
Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own.
Description
A vulnerability was found in Open Asset Import Library Assimp 5.4.3. It has been classified as problematic. Affected is the function MDCImporter::InternReadFile of the file assimp/code/AssetLib/MDC/MDCLoader.cpp of the component MDC File Parser. The manipulation of the argument pcVerts leads to out-of-bounds read. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The project decided to collect all Fuzzer bugs in a main-issue to address them in the future.
- CVSS 4.0
- 4.8 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.26% probability · 18th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-125
- Affected
- assimp/assimp
- Source
- cna@vuldb.com
EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/assimp/assimp/issues/6128Issue Tracking
- https://github.com/assimp/assimp/issues/6168Exploit
- https://github.com/user-attachments/files/20208318/reproducer.zipExploit
- https://vuldb.com/?ctiid.310254Permissions Required, VDB Entry
- https://vuldb.com/?id.310254Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.578001Third Party Advisory, VDB Entry
- https://github.com/assimp/assimp/issues/6168Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.