---
id: CVE-2025-15666
title: >-
  A security vulnerability has been detected in Open Asset Import Library Assimp
  up to 5.4.3
summary: >-
  A security vulnerability has been detected in Open Asset Import Library Assimp
  up to 5.4.3. Affected by this vulnerability is the function
  Assimp::SceneCombiner::Copy of the file code/Common/SceneCombiner.cpp of the
  component Model File …
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-119
  - CWE-122
published: '2026-07-01'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T21:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-15666'
references:
  - url: 'https://github.com/assimp/assimp/issues/6079'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2025-15666'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/844487'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/374595'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/374595/cti'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.00171
epssPercentile: 0.05802
ingestedAt: '2026-09-30T21:25:07.791Z'
---

## Overview

A security vulnerability has been detected in Open Asset Import Library Assimp up to 5.4.3. Affected by this vulnerability is the function Assimp::SceneCombiner::Copy of the file code/Common/SceneCombiner.cpp of the component Model File Handler. Such manipulation of the argument width/height leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. This and similar defects are tracked and handled via issue #6128.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.