CVE-2026-19969: Open Asset Import Library Assimp · Buffer Overflow
Affects Open Asset Import Library AssimpSource CVE Database V5
Public exploit available · CVSS 5.3 Medium.
Data as of 14 Nov 2026, 20:44 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 17 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 14 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Open Asset Import LibraryAssimp | Affected
| Fixed in– |
CPE configurations (1)
cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:*
AI-suggested
Since the project has not responded or released a fix, users should monitor official channels for updates. Until a patch is available, avoid processing untrusted or malformed MDL7 model files with the affected Assimp function to reduce risk.
Description
A buffer overflow vulnerability exists in the Open Asset Import Library (Assimp) in the function Assimp::MDLImporter::GenerateOutputMeshes_3DGS_MDL7. The vulnerability arises because the code copies an input buffer to an output buffer without verifying that the input size is less than the output buffer size. This flaw can be remotely exploited, potentially impacting the integrity and availability of the affected system. The vulnerability has been publicly disclosed, but no patch or official fix has been announced yet.
References
- vuldb.com/vuln/391146 (opens in a new tab)
- vuldb.com/vuln/391146/cti (opens in a new tab)
- vuldb.com/cve/CVE-2026-19969 (opens in a new tab)
- vuldb.com/submit/873130 (opens in a new tab)
- github.com/assimp/assimp/issues/6631 (opens in a new tab)
- github.com/user-attachments/files/27425495/poc.zip (opens in a new tab)