Heap-Based Buffer Overflow in Open Asset Import Library Assimp Affecting Multiple Versions
CVE-2025-6120

4.8MEDIUM

Key Information:

Vendor

Open Asset Import Library

Status
Assimp
Vendor
CVE Published:
16 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6120?

A vulnerability exists in the Open Asset Import Library Assimp versions up to 5.4.3, specifically within the function read_meshes located in the HL1MDLLoader.cpp file. This flaw allows for heap-based buffer overflows, potentially enabling attackers to execute arbitrary code by manipulating input data. While the vulnerability has been disclosed publicly, it is imperative for users of the affected versions to apply necessary mitigations or updates to safeguard their systems.

Affected Version(s)

Assimp 5.4.0

Assimp 5.4.1

Assimp 5.4.2

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-2025-6120 - Proof of Concept

References

https://vuldb.com/?id.312589
vdb-entrytechnical-description
https://vuldb.com/?ctiid.312589
signaturepermissions-required
https://vuldb.com/?submit.591235
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
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

Credit

Rulkallos (VulDB User)
.
CVE-2025-6120 : Heap-Based Buffer Overflow in Open Asset Import Library Assimp Affecting Multiple Versions