CVE-2026-129480

Description

Assimp through 6.0.6 contains a heap out-of-bounds read vulnerability in MD2Importer::InternReadFile that allows attackers to read past the file buffer via an unvalidated stored frameSize header field. Attackers can supply a crafted .md2 file loaded with a non-zero keyframe selected to crash the application or leak adjacent heap memory into the imported mesh.

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

• 5.8CVSS 4.0, Mediumfrom the CNA (VulnCheck)CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
• 5.3CVSS 3.1, Mediumfrom the CNA (VulnCheck)CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Timeline

1. 15 Nov 2026 Published

Weakness

• CWE-125

References

• github.comissue-tracking
• github.comissue-trackingpatch
• github.comtechnical-description
• VulnCheck Advisory: Assimp through 6.0.6 Heap Out-of-Bounds Read via MD2 Importer frameSizethird-party-advisory