Out-of-Bounds Read in Open Asset Import Library Assimp Affects Version 5.4.3
CVE-2025-5204

4.8MEDIUM

Key Information:

Vendor

Open Asset Import Library

Status
Assimp
Vendor
CVE Published:
26 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5204?

A vulnerability has been identified in version 5.4.3 of the Open Asset Import Library, specifically within the MDLImporter::ParseSkinLump_3DGS_MDL7 function located in MDLMaterialLoader.cpp. This flaw allows for an out-of-bounds read, which can be exploited locally. The issue has been disclosed publicly, indicating that it may be leveraged in attacks. The Assimp project is actively collecting related Fuzzer bugs to address this problem in future updates.

Affected Version(s)

Assimp 5.4.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-5204 - Proof of Concept

References

https://vuldb.com/?id.310293
vdb-entrytechnical-description
https://vuldb.com/?ctiid.310293
signaturepermissions-required
https://vuldb.com/?submit.578013
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-5204 : Out-of-Bounds Read in Open Asset Import Library Assimp Affects Version 5.4.3