Buffer overflow in Open Asset Import Library Assimp
CVE-2025-15666
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (5.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Open Asset Import Library Assimp — versions 5.4.0, 5.4.1, 5.4.2
Weakness classification (CWE)
References
- vuldb.com/vuln/374595 (technical-description, vdb-entry)
- vuldb.com/vuln/374595/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2025-15666 (third-party-advisory)
- vuldb.com/submit/844487 (third-party-advisory)
- github.com/assimp/assimp/issues/6079 (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2025-15666?
- CVE-2025-15666 is a medium-severity vulnerability in Open Asset Import Library Assimp, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-07-01.
- How severe is CVE-2025-15666?
- Medium severity. CVSS v3 base score is 5.3 out of 10.