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Vulnerability · Published May 26, 2025 · Assigned by VulDB

CVE-2025-5202Open Asset Import Library Assimp HL1MDLLoader.cpp validate_header out-of-bounds

Low 3.3

In plain English

A low-severity out-of-bounds read 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 23% of all known vulnerabilities).

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.3%top 77.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability was found in Open Asset Import Library Assimp 5.4.3. It has been declared as problematic. Affected by this vulnerability is the function HL1MDLLoader::validate_header of the file assimp/code/AssetLib/MDL/HalfLife/HL1MDLLoader.cpp. The manipulation leads to out-of-bounds read. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The project decided to collect all Fuzzer bugs in a main-issue to address them in the future.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12assimpno fix listedDEBIAN-CVE-2025-5202
Debian:13assimpno fix listedDEBIAN-CVE-2025-5202
Debian:14assimpno fix listedDEBIAN-CVE-2025-5202
Ubuntu:22.04:LTSassimpno fix listedUBUNTU-CVE-2025-5202
Ubuntu:24.04:LTSassimpno fix listedUBUNTU-CVE-2025-5202
Ubuntu:25.10assimpno fix listedUBUNTU-CVE-2025-5202
Ubuntu:26.04:LTSassimpno fix listedUBUNTU-CVE-2025-5202
Ubuntu:26.10assimpno fix listedUBUNTU-CVE-2025-5202

Affected products (as reported)

VendorProductVersions
Open Asset Import Library Assimp 5.4.3

Weakness: CWE-125, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References