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Assimp CVE-2025-70069

| EUVDEUVD-2025-209618 HIGH
Uncontrolled Resource Consumption (CWE-400)
2026-05-04 mitre
Denial Of Service N A
7.5
CVSS 3.1 · Vendor: mitre
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Severity by source

Vendor (mitre) PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SUSE
HIGH
qualitative
Red Hat
7.5 HIGH
qualitative

Primary rating from Vendor (mitre).

CVSS VectorVendor: mitre

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

5
Analysis Generated
May 04, 2026 - 18:23 vuln.today
CVSS changed
May 04, 2026 - 18:22 NVD
7.5 (HIGH)
EUVD ID Assigned
May 04, 2026 - 14:15 euvd
EUVD-2025-209618
Analysis Generated
May 04, 2026 - 14:15 vuln.today
CVE Published
May 04, 2026 - 00:00 nvd
HIGH 7.5

DescriptionCVE.org

An issue in Assimp v.6.0.2 allows a remote attacker to cause a denial of service via the FBXConverter.cpp and ConvertMeshMultiMaterial() method

AnalysisAI

Assimp 6.0.2 crashes when processing malformed FBX files due to unchecked resource consumption in the FBX multi-material mesh converter. Remote attackers can trigger denial of service (application crash) via network-delivered malicious 3D model files without authentication, requiring no user interaction beyond normal file processing. EPSS data not available; no evidence of active exploitation (not in CISA KEV). Publicly documented proof-of-concept exists via GitHub Gist, enabling straightforward reproduction.

Technical ContextAI

Assimp (Open Asset Import Library) is a C++ library for importing 3D model files across 50+ formats including FBX (Filmbox), commonly used in game engines and 3D rendering pipelines. The vulnerability resides in FBXConverter.cpp's ConvertMeshMultiMaterial() method, classified as CWE-400 (Uncontrolled Resource Consumption). This indicates improper validation of resource limits when parsing FBX multi-material mesh structures, likely allowing crafted files to trigger excessive memory allocation, infinite loops, or stack exhaustion during mesh conversion operations. CPE data is incomplete (cpe:2.3:a:n/a:n/a), but vendor website confirms Assimp as affected product.

RemediationAI

Upgrade to Assimp version newer than 6.0.2 once a patched release is published - no specific fix version has been announced by the vendor at time of analysis. Monitor the official Assimp GitHub repository (https://github.com/assimp/assimp) for security patches addressing FBXConverter.cpp resource handling. Until patched versions are available, implement these compensating controls with noted trade-offs: (1) Disable FBX format support in Assimp build configuration if business logic permits, eliminating attack surface but restricting supported file types. (2) Deploy file validation layer before Assimp parsing: reject FBX files exceeding size thresholds (e.g., 50MB) or containing abnormal material counts (e.g., >1000 materials per mesh), though this may block legitimate complex models. (3) Run Assimp processing in sandboxed containers with CPU/memory resource limits and automatic restart policies to contain crash impact, adding operational complexity. (4) Apply rate limiting on user-uploaded 3D asset endpoints to prevent DoS amplification, though this doesn't prevent individual instance crashes. Consult GitHub Gist POC (https://gist.github.com/GunP4ng/9080ae7f0470c889a59cc3bfca445223) to understand exact trigger conditions for validation rule design.

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Vendor StatusVendor

SUSE

Severity: High
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Fixed

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CVE-2025-70069 vulnerability details – vuln.today
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