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CVE-2026-19999— Open Asset Import Library Assimp 3DGS MDL7 Bone Transformation Key MDLLoader.cpp ParseBoneTrafoKeys_3DGS_MDL7 buffer overflow

Quick assessment

Affected
Open Asset Import Library Assimp 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.

Open Asset Import Library是Open Asset Import Library组织开源的一个库。用于导入和导出各种三维模型格式。 Open Asset Import Library 17c12da版本存在安全漏洞，该漏洞源于3DGS MDL7 Bone Transformation Key Parser组件中ParseBoneTrafoKeys_3DGS_MDL7函数对参数transmatrix_count/pcBoneTransforms的操作不当，导致缓冲区溢出，可能允许远程攻

CVSS 6.3 · Medium EPSS 0.27% · P20

Affected Version Matrix 1

VendorProduct Version RangeStatus
Open Asset Import Library Assimp Assimp 17c12da affected
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I. Basic Information for CVE-2026-19999

Vulnerability Information
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Vulnerability Title
Open Asset Import Library Assimp 3DGS MDL7 Bone Transformation Key MDLLoader.cpp ParseBoneTrafoKeys_3DGS_MDL7 buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in Open Asset Import Library Assimp Assimp 17c12da. The affected element is the function Assimp::MDLImporter::ParseBoneTrafoKeys_3DGS_MDL7 of the file code/AssetLib/MDL/MDLLoader.cpp of the component 3DGS MDL7 Bone Transformation Key Parser. The manipulation of the argument transmatrix_count/pcBoneTransforms leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is 50d767984e78d51b53e2020fdf0967fd624bc377. It is recommended to apply a patch to fix this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Open Asset Import Library 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open Asset Import Library是Open Asset Import Library组织开源的一个库。用于导入和导出各种三维模型格式。 Open Asset Import Library 17c12da版本存在安全漏洞，该漏洞源于3DGS MDL7 Bone Transformation Key Parser组件中ParseBoneTrafoKeys_3DGS_MDL7函数对参数transmatrix_count/pcBoneTransforms的操作不当，导致缓冲区溢出，可能允许远程攻
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 Assimp 17c12da cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19999

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III. Intelligence Information for CVE-2026-19999

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Patches & Fixes for CVE-2026-19999 (2)

Vendor Advisories for CVE-2026-19999 (1)

Other References for CVE-2026-19999 (1)

IV. Related Vulnerabilities

Same product: Assimp
Same weakness: CWE-120

V. Comments for CVE-2026-19999

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