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CVE-2025-3548— Open Asset Import Library Assimp File types.h Set 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.

Open Asset Import Library（assimp）是Open Asset Import Library开源的一个库。 Open Asset Import Library 5.4.3及之前版本存在安全漏洞，该漏洞源于文件include/assimp/types.h中函数aiString::Set存在堆缓冲区溢出。

CVSS 5.3 · Medium EPSS 0.27% · P19
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I. Basic Information for CVE-2025-3548

Vulnerability Information
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Vulnerability Title
Open Asset Import Library Assimp File types.h Set heap-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as critical, has been found in Open Asset Import Library Assimp up to 5.4.3. This issue affects the function aiString::Set in the library include/assimp/types.h of the component File Handler. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. 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
Open Asset Import Library 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open Asset Import Library（assimp）是Open Asset Import Library开源的一个库。 Open Asset Import Library 5.4.3及之前版本存在安全漏洞，该漏洞源于文件include/assimp/types.h中函数aiString::Set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 5.4.0 -

II. Public POCs for CVE-2025-3548

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III. Intelligence Information for CVE-2025-3548

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Patches & Fixes for CVE-2025-3548 (1)

Proof of Concept for CVE-2025-3548 (1)

Other References for CVE-2025-3548 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2025-3548

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