Vulnerability · Published Oct 28, 2026 · Assigned by VulnCheck
CVE-2026-117608Assimp through 6.0.5 Heap Out-of-Bounds Read via MD2 Importer Integer Overflow
Medium 6.1
In plain English
A medium-severity integer overflow in assimp from assimp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).
Official description
Assimp through 6.0.5 contains an integer overflow vulnerability in MD2Importer::ValidateHeader() that allows attackers to bypass frame table bounds checks using crafted header fields. Attackers can supply a malicious .md2 file whose numFrames and numVertices values wrap the 32-bit size check, causing heap out-of-bounds reads that crash applications or expose adjacent heap memory.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | assimp | no fix listed | DEBIAN-CVE-2026-117608 |
| Debian:13 | assimp | no fix listed | DEBIAN-CVE-2026-117608 |
| Debian:14 | assimp | no fix listed | DEBIAN-CVE-2026-117608 |
| Ubuntu:22.04:LTS | assimp | no fix listed | UBUNTU-CVE-2026-117608 |
| Ubuntu:24.04:LTS | assimp | no fix listed | UBUNTU-CVE-2026-117608 |
| Ubuntu:26.04:LTS | assimp | no fix listed | UBUNTU-CVE-2026-117608 |
| Ubuntu:26.10 | assimp | no fix listed | UBUNTU-CVE-2026-117608 |
Affected products (as reported)
Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
References
- https://github.com/assimp/assimp/issues/6929 issue-tracking
- https://github.com/assimp/assimp/pull/6963 patch, issue-tracking
- https://github.com/assimp/assimp/commit/7dbc85d9218fae017d4fad70269e7569f7b0c870 patch
- https://github.com/assimp/assimp/blob/v6.0.5/code/AssetLib/MD2/MD2Loader.cpp#L171-L176 technical-description
- https://github.com/assimp/assimp product
- VulnCheck Advisory: Assimp through 6.0.5 Heap Out-of-Bounds Read via MD2 Importer Integer Overflow third-party-advisory