Use After Free Vulnerability in Open Asset Import Library Assimp Affects Multiple Versions
CVE-2025-15538

4.8MEDIUM

Key Information:

Vendor

Open Asset Import Library

Status
Assimp
Vendor
CVE Published:
18 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15538?

A security flaw has been identified in the Open Asset Import Library Assimp, specifically within the Assimp::LWOImporter::FindUVChannels function located in LWOMaterial.cpp. This vulnerability allows local attackers to exploit a use after free condition, potentially leading to unauthorized access or application crashes. Disclosed publicly, this defect is tracked in issue #6128 and has already garnered attention due to its possible exploitation. Users are advised to review the vulnerability carefully and to follow best practices for ensuring their systems are secure.

Affected Version(s)

Assimp 6.0.0

Assimp 6.0.1

Assimp 6.0.2

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-2025-15538 - Proof of Concept

References

https://vuldb.com/?id.341727
vdb-entrytechnical-description
https://vuldb.com/?ctiid.341727
signaturepermissions-required
https://vuldb.com/?submit.735232
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

sisyphus-w4ng (VulDB User)
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