What is CVE-2025-3015?

CVE-2025-3015 is a medium-severity vulnerability in Assimp, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2025-03-31.

How severe is CVE-2025-3015?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Is CVE-2025-3015 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Assimp

CVE-2025-3015

A vulnerability classified as critical has been found in Open Asset Import Library Assimp 5.4.3. This affects the function Assimp::ASEImporter::BuildUniqueRepresentation of the file code/AssetLib/ASE/ASELoader.cpp of the component ASE File Handler. The manipulation of the argument mIndices leads to out-of-bounds read. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 6.0 is able to address this issue. The patch is named 7c705fde418d68cca4e8eff56be01b2617b0d6fe. It is recommended to apply a patch to fix this issue.

Vulnerability class: Buffer Overflow

Published 2025-03-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.005 (40.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Assimp — versions 5.4.3
Open Asset Import Library Assimp — versions 5.4.3

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
github.com/assimp/assimp/issues/6021 (issue-tracking, Exploit, Issue Tracking)
github.com/assimp/assimp/pull/6045 (issue-tracking, Patch, Issue Tracking)
github.com/assimp/assimp/issues/6021 (issue-tracking, Exploit, exploit, Issue Tracking)
github.com/assimp/assimp/commit/7c705fde418d68cca4e8eff56be01b2617b0d6fe (Patch, patch)

Frequently asked questions

What is CVE-2025-3015?: CVE-2025-3015 is a medium-severity vulnerability in Assimp, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2025-03-31.
How severe is CVE-2025-3015?: Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2025-3015 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.