CVE-2016-9304 in FBX-SDK
Summary
by MITRE
Multiple buffer overflows in the Autodesk FBX-SDK before 2017.1 can allow attackers to execute arbitrary code when reading or converting malformed DFX format files.
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Analysis
by VulDB Data Team • 05/14/2026
The Autodesk FBX-SDK vulnerability identified as CVE-2016-9304 represents a critical security flaw affecting versions prior to 2017.1, where multiple buffer overflows exist in the software's handling of DFX format files. This vulnerability stems from inadequate input validation and memory management within the SDK's file processing routines, creating opportunities for attackers to manipulate the software's behavior through maliciously crafted file content. The flaw specifically manifests during the reading or conversion processes of DFX files, making it particularly dangerous for applications that rely on the FBX-SDK for 3D content processing and integration.
The technical implementation of this vulnerability involves improper bounds checking during memory allocation and data copying operations within the FBX-SDK's file parsing functions. When the SDK encounters malformed DFX files, the buffer overflow conditions allow attackers to overwrite adjacent memory locations, potentially corrupting program execution flow. This type of vulnerability maps directly to CWE-121, which describes stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow scenarios. The vulnerability's exploitation requires careful crafting of malicious DFX files that trigger specific memory layout conditions, making it a sophisticated attack vector that requires both technical knowledge and precise payload development.
The operational impact of CVE-2016-9304 extends beyond simple code execution, as it can compromise entire 3D content workflows and applications that depend on the FBX-SDK for file processing. Attackers can leverage this vulnerability to gain unauthorized access to systems processing 3D content, potentially leading to data theft, system compromise, or disruption of creative workflows in industries such as entertainment, architecture, and engineering where FBX files are extensively used. The vulnerability affects not only end-user applications but also server-side processing systems that handle 3D content conversions, creating widespread exposure across digital content production environments. Organizations using affected versions of the FBX-SDK face significant risk of supply chain attacks when processing third-party 3D assets, as a single compromised file could lead to complete system compromise.
Mitigation strategies for this vulnerability require immediate patching of the FBX-SDK to version 2017.1 or later, which includes proper input validation and memory management fixes. System administrators should implement file validation procedures for all incoming DFX content, including signature verification and automated scanning for known malicious patterns. The remediation process should also include network segmentation to limit exposure of systems processing 3D content, along with regular security assessments of applications that utilize the FBX-SDK. Additionally, implementing runtime protections such as address space layout randomization and data execution prevention can provide defense-in-depth measures against exploitation attempts. Organizations should also consider the ATT&CK framework's T1203 technique related to legitimate program execution, as this vulnerability could be leveraged as part of broader attack chains targeting creative and engineering environments where such 3D content processing is prevalent.