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Vulnerability · Published Apr 14, 2025 · Assigned by VulDB

CVE-2025-3549Open Asset Import Library Assimp File MD3Loader.cpp ValidateSurfaceHeaderOffsets heap-based overflow

Medium 5.3

In plain English

A medium-severity heap buffer overflow 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 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 79.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. Affected is the function Assimp::MD3Importer::ValidateSurfaceHeaderOffsets of the file code/AssetLib/MD3/MD3Loader.cpp of the component File Handler. The manipulation leads to heap-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12assimpno fix listedDEBIAN-CVE-2025-3549
Debian:13assimpno fix listedDEBIAN-CVE-2025-3549
Debian:14assimp6.0.3+ds-1DEBIAN-CVE-2025-3549
PyPIpyassimpno fix listedPYSEC-2025-171
Ubuntu:22.04:LTSassimpno fix listedUBUNTU-CVE-2025-3549
Ubuntu:24.04:LTSassimpno fix listedUBUNTU-CVE-2025-3549
Ubuntu:25.10assimpno fix listedUBUNTU-CVE-2025-3549
Ubuntu:26.04:LTSassimpno fix listedUBUNTU-CVE-2025-3549
Ubuntu:26.10assimpno fix listedUBUNTU-CVE-2025-3549

Affected products (as reported)

VendorProductVersions
Open Asset Import Library Assimp 5.4.3

Weakness: CWE-122, 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