Buffer overflow in Assimp
CVE-2026-10233
A security vulnerability has been detected in Assimp up to 6.0.4. Affected by this issue is the function HL1MDLLoader::read_sequence_infos of the file HL1MDLLoader.cpp of the component Half-Life 1 MDL Loader. The manipulation of the argument aiString leads to out-of-bounds read. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. The project tagged the reported issue as bug.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.001 (1.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Assimp — versions 6.0.0, 6.0.1, 6.0.2
Weakness classification (CWE)
References
- vuldb.com/vuln/367512 (technical-description, vdb-entry)
- vuldb.com/vuln/367512/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-10233 (third-party-advisory)
- vuldb.com/submit/821196 (third-party-advisory)
- github.com/assimp/assimp/issues/6619 (issue-tracking)
- github.com/user-attachments/files/27228962/poc.zip (exploit)
- github.com/assimp/assimp/ (product)
Frequently asked questions
- What is CVE-2026-10233?
- CVE-2026-10233 is a low-severity vulnerability in Assimp, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-06-01.
- How severe is CVE-2026-10233?
- Low severity. CVSS v3 base score is 3.3 out of 10.