Out-of-Bounds Read Vulnerability in Open Asset Import Library Assimp 5.4.3
CVE-2025-5202

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-2025-5202?

A vulnerability exists within the Open Asset Import Library (Assimp) version 5.4.3, specifically in the HL1MDLLoader::validate_header function located in the assimp/code/AssetLib/MDL/HalfLife/HL1MDLLoader.cpp file. This vulnerability allows for an out-of-bounds read, posing potential risks when manipulated. The issue requires a local attack vector and has been publicly disclosed, prompting the project's team to prioritize improvements for all Fuzzer-related issues 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-2025-5202 - Proof of Concept

References

https://vuldb.com/?id.310291
vdb-entrytechnical-description
https://vuldb.com/?ctiid.310291
signaturepermissions-required
https://vuldb.com/?submit.578007
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-2025-5202 : Out-of-Bounds Read Vulnerability in Open Asset Import Library Assimp 5.4.3