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CVE-2025-3159— Open Asset Import Library Assimp ASE File ASEParser.cpp ParseLV4MeshBonesVertices heap-based overflow

Quick assessment

Affected
Open Asset Import Library Assimp
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Assimp是Assimp开源的一个库。用于导入和导出各种三维模型格式。 Assimp 5.4.3版本存在安全漏洞，该漏洞源于ASE文件处理组件存在堆缓冲区溢出。

CVSS 5.3 · Medium EPSS 0.33% · P24
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I. Basic Information for CVE-2025-3159

Vulnerability Information
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Vulnerability Title
Open Asset Import Library Assimp ASE File ASEParser.cpp ParseLV4MeshBonesVertices heap-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. This affects the function Assimp::ASE::Parser::ParseLV4MeshBonesVertices of the file code/AssetLib/ASE/ASEParser.cpp of the component ASE File Handler. The manipulation leads to heap-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The identifier of the patch is e8a6286542924e628e02749c4f5ac4f91fdae71b. It is recommended to apply a patch to fix this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Assimp 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Assimp是Assimp开源的一个库。用于导入和导出各种三维模型格式。 Assimp 5.4.3版本存在安全漏洞，该漏洞源于ASE文件处理组件存在堆缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Open Asset Import Library Assimp 5.4.3 -

II. Public POCs for CVE-2025-3159

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III. Intelligence Information for CVE-2025-3159

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Proof of Concept for CVE-2025-3159 (1)

Same Patch Batch · Open Asset Import Library · 2025-04-03 · 3 CVEs total

CVE-2025-3158 5.3 MEDIUM Open Asset Import Library Assimp LWO File LWOAnimation.cpp UpdateAnimRangeSetup heap-based
CVE-2025-3160 3.3 LOW Open Asset Import Library Assimp File SceneCombiner.cpp AddNodeHashes out-of-bounds

IV. Related Vulnerabilities

Same product: Assimp
Same vendor: Open Asset Import Library
Same weakness: CWE-122

V. Comments for CVE-2025-3159

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