Heap-Based Buffer Overflow in Assimp Half-Life 1 MDL Loader
CVE-2026-10229

4.8MEDIUM

Key Information:

Vendor

Assimp

Status
Assimp
Vendor
CVE Published:
1 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-10229?

A heap-based buffer overflow vulnerability has been identified in the HL1MDLLoader::read_meshes function of the Half-Life 1 MDL Loader component in Assimp, affecting versions up to 6.0.4. This vulnerability requires local execution for exploitation and could allow an attacker to manipulate the buffer, potentially leading to unauthorized access or code execution. The issue has been publicly disclosed and is categorized as a bug within the project's issue tracking system.

Affected Version(s)

Assimp 6.0.0

Assimp 6.0.1

Assimp 6.0.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-10229 - Proof of Concept

References

https://vuldb.com/vuln/367508
vdb-entrytechnical-description
https://vuldb.com/vuln/367508/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-10229
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

TYGLS (VulDB User)
VulDB CNA Team
.