Out-of-Bounds Read Vulnerability in Open Asset Import Library Assimp by Assimp
CVE-2025-5166

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-2025-5166?

A notable out-of-bounds read vulnerability has been identified in the Open Asset Import Library Assimp version 5.4.3. The issue resides within the function MDCImporter::InternReadFile in the MDCLoader.cpp file, specifically affecting the MDC File Parser component. Attackers can leverage this vulnerability through manipulated arguments in the pcVerts parameter, leading to unauthorized memory access. The vulnerability can be exploited locally, posing risks to data integrity and application stability. As a response to public disclosure of this vulnerability, the development team is working to address the Fuzzer bugs systematically.

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-2025-5166 - Proof of Concept

References

https://vuldb.com/?id.310254
vdb-entrytechnical-description
https://vuldb.com/?ctiid.310254
signaturepermissions-required
https://vuldb.com/?submit.578001
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-2025-5166 : Out-of-Bounds Read Vulnerability in Open Asset Import Library Assimp by Assimp