CVE-2026-19969Public exploitNetwork attack vector

Memory corruption via MDL7 bone-array overwrite

Published Aug 17, 2026 · Updated Aug 18, 2026

Buffer overflow in Assimp 17c12da allows remote attackers to crash applications via crafted 3DGS MDL7 model files. In code/AssetLib/MDL/MDLLoader.cpp, GenerateOutputMeshes_3DGS_MDL7 allocates pcMesh->mBones and then writes past that array when iCurrent exceeds the allocated bound. Exploitation requires an application to import an attacker-supplied MDL7 file; Red Hat rates the bug as low-integrity and low-availability impact and notes possible sensitive-information disclosure.

CVSS severity5.4
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Assimp 17c12da allows remote attackers to crash applications via crafted 3DGS MDL7 model files. In code/AssetLib/MDL/MDLLoader.cpp, GenerateOutputMeshes_3DGS_MDL7 allocates pcMesh->mBones and then writes past that array when iCurrent exceeds the allocated bound. Exploitation requires an application to import an attacker-supplied MDL7 file; Red Hat rates the bug as low-integrity and low-availability impact and notes possible sensitive-information disclosure.

The record

CVE
CVE-2026-19969
Published
Aug 17, 2026
Updated
Aug 18, 2026
Vendor
Open Asset Import Library
Product
Assimp
Classifications
CWE-120
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=17c12da

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Open Asset Import Library · Assimpversion=17c12da

Published CVSS scores

5.4Red HatCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Public exploit references

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Technologies

Your stack

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Your stack

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