CVE-2025-3548: Open Asset Import Library Assimp File types.h Set heap-based overflow

Severity: low (CVSS 3.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-04-14 · updated 2026-06-17
Weakness: CWE-119

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.

Affected products

Open Asset Import Library Assimp: through 5.4.3

References

https://github.com/assimp/assimp/issues/6068
https://github.com/assimp/assimp/pull/6073
https://github.com/user-attachments/files/19580584/aiString_Set-hbo.zip
https://vuldb.com/?ctiid.304589
https://vuldb.com/?id.304589
https://vuldb.com/?submit.546413

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