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Vulnerability · Published Jan 18, 2026 · Assigned by VulDB

CVE-2025-15538Open Asset Import Library Assimp LWOMaterial.cpp FindUVChannels use after free

Medium 5.3

In plain English

A medium-severity use-after-free in Assimp from Open Asset Import Library. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.2%top 90.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. Affected by this vulnerability is the function Assimp::LWOImporter::FindUVChannels of the file /src/assimp/code/AssetLib/LWO/LWOMaterial.cpp. Such manipulation leads to use after free. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. This and similar defects are tracked and handled via issue #6128.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.23assimp6.0.4-r0ALPINE-CVE-2025-15538
Alpine:v3.24assimp6.0.4-r0ALPINE-CVE-2025-15538
Debian:12assimpno fix listedDEBIAN-CVE-2025-15538
Debian:13assimpno fix listedDEBIAN-CVE-2025-15538
Debian:14assimpno fix listedDEBIAN-CVE-2025-15538
Ubuntu:22.04:LTSassimpno fix listedUBUNTU-CVE-2025-15538
Ubuntu:24.04:LTSassimpno fix listedUBUNTU-CVE-2025-15538
Ubuntu:25.10assimpno fix listedUBUNTU-CVE-2025-15538
Ubuntu:26.04:LTSassimpno fix listedUBUNTU-CVE-2025-15538
Ubuntu:26.10assimpno fix listedUBUNTU-CVE-2025-15538

Affected products (as reported)

VendorProductVersions
Open Asset Import Library Assimp 6.0.06.0.16.0.2

Weakness: CWE-416, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References