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Vulnerability · Published Aug 17, 2026 · Assigned by VulDB

CVE-2026-19970Open Asset Import Library Assimp Node MDLLoader.cpp AddBonesToNodeGraph_3DGS_MDL7 heap-based overflow

Medium 6.3

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 0.5% (higher than 39% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.5%top 60.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability was detected in Open Asset Import Library Assimp 17c12da. This affects the function Assimp::MDLImporter::AddBonesToNodeGraph_3DGS_MDL7 of the file code/AssetLib/MDL/MDLLoader.cpp of the component Node Parser. The manipulation of the argument bones_num results in heap-based buffer overflow. The attack can be executed remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12assimpno fix listedDEBIAN-CVE-2026-19970
Debian:13assimpno fix listedDEBIAN-CVE-2026-19970
Debian:14assimpno fix listedDEBIAN-CVE-2026-19970
Ubuntu:22.04:LTSassimpno fix listedUBUNTU-CVE-2026-19970
Ubuntu:24.04:LTSassimpno fix listedUBUNTU-CVE-2026-19970
Ubuntu:26.04:LTSassimpno fix listedUBUNTU-CVE-2026-19970
Ubuntu:26.10assimpno fix listedUBUNTU-CVE-2026-19970

Affected products (as reported)

VendorProductVersions
Open Asset Import Library Assimp 17c12da

Weakness: CWE-122, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References