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Vulnerability · Published Mar 21, 2025 · Assigned by VulDB

CVE-2025-2591Open Asset Import Library Assimp MDLLoader.cpp InternReadFile_Quake1 divide by zero

Medium 4.3

In plain English

A medium-severity security flaw 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 0.7% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.7%top 48.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function MDLImporter::InternReadFile_Quake1 of the file code/AssetLib/MDL/MDLLoader.cpp. The manipulation of the argument skinwidth/skinheight leads to divide by zero. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The patch is identified as ab66a1674fcfac87aaba4c8b900b315ebc3e7dbd. It is recommended to apply a patch to fix this issue.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12assimpno fix listedDEBIAN-CVE-2025-2591
Debian:13assimpno fix listedDEBIAN-CVE-2025-2591
Debian:14assimp6.0.2+ds-1DEBIAN-CVE-2025-2591
PyPIpyassimpno fix listedPYSEC-2025-160
Ubuntu:22.04:LTSassimpno fix listedUBUNTU-CVE-2025-2591
Ubuntu:24.04:LTSassimpno fix listedUBUNTU-CVE-2025-2591
Ubuntu:25.10assimpno fix listedUBUNTU-CVE-2025-2591
Ubuntu:26.04:LTSassimpno fix listedUBUNTU-CVE-2025-2591
Ubuntu:26.10assimpno fix listedUBUNTU-CVE-2025-2591

Affected products (as reported)

VendorProductVersions
Open Asset Import Library Assimp 5.4.3

Weakness: CWE-369, CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

References