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. Es wurde eine problematische Schwachstelle in Open Asset Import Library Assimp 5.4.3 ausgemacht. Betroffen hiervon ist die Funktion MDCImporter::InternReadFile der Datei assimp/code/AssetLib/MDC/MDCLoader.cpp der Komponente MDC File Parser. Durch Beeinflussen des Arguments pcVerts mit unbekannten Daten kann eine out-of-bounds read-Schwachstelle ausgenutzt werden. Der Angriff hat dabei lokal zu erfolgen. Der Exploit steht zur öffentlichen Verfügung.

Classification

CVE ID: CVE-2025-5166

CVSS Base Severity: LOW

CVSS Base Score: 3.3

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected Products

Vendor: Open Asset Import Library

Product: Assimp

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 3.38% (scored less or equal to compared to others)

EPSS Date: 2025-06-06 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-5166
https://vuldb.com/?id.310254
https://vuldb.com/?ctiid.310254
https://vuldb.com/?submit.578001
https://github.com/assimp/assimp/issues/6168
https://github.com/assimp/assimp/issues/6128
https://github.com/user-attachments/files/20208318/reproducer.zip

Timeline