CVE-2026-16782: 
Autodesk 3ds Max vulnerability analysis and mitigation

CVE-2026-16782 is an Out-of-Bounds Read vulnerability in Autodesk 3ds Max triggered by parsing a maliciously crafted SVG file. It affects Autodesk 3ds Max versions 2026.0.0 through 2026.3.4 (exclusive) and 2027.0.0 through 2027.2.0 (exclusive). The vulnerability was published on August 24, 2026, and assigned a CVSS v3.1 base score of 5.3 (Medium) by Autodesk (GitHub Advisory, Autodesk Advisory).

The root cause is an Out-of-Bounds Read (CWE-125) in 3ds Max's SVG file parser, which fails to properly validate buffer boundaries when processing SVG file content. An attacker can craft a malicious SVG file that, when opened or imported by a 3ds Max user, causes the application to read memory beyond the intended buffer. No authentication or user privileges are required, and the attack vector is classified as network-based with low complexity, though in practice the file must be delivered to and opened by a target user. No public proof-of-concept code has been identified (GitHub Advisory, Autodesk Advisory).

Successful exploitation can result in application crashes (denial of service to the user), exposure of sensitive data from process memory, or arbitrary code execution within the context of the 3ds Max process. The confidentiality impact is rated low, with no direct integrity or availability impact reflected in the CVSS score, though the vendor's description acknowledges the potential for code execution. Affected users include designers, architects, and engineers relying on 3ds Max 2026 or 2027 who process SVG files from untrusted sources (Autodesk Advisory, GitHub Advisory).

There is no evidence of active in-the-wild exploitation or a publicly available proof-of-concept exploit as of the disclosure date. The EPSS score is 0.0, indicating a very low probability of exploitation in the near term. The vulnerability has not been added to the CISA Known Exploited Vulnerabilities (KEV) catalog. A patch is available from Autodesk (GitHub Advisory, Autodesk Advisory).

1. Craft malicious SVG: Create a specially crafted SVG file with malformed or oversized data structures designed to trigger an out-of-bounds read in 3ds Max's SVG parser.
2. Deliver the file: Distribute the malicious SVG to a target 3ds Max user via email, file-sharing platform, or a compromised asset repository commonly used in design workflows.
3. Trigger parsing: Induce the victim to open or import the SVG file into Autodesk 3ds Max 2026 (before 2026.3.4) or 2027 (before 2027.2.0).
4. Exploit out-of-bounds read: The parser reads beyond the intended buffer boundary, potentially exposing sensitive process memory contents or enabling conditions for arbitrary code execution within the 3ds Max process context (Autodesk Advisory, GitHub Advisory).

• File System: Unexpected or unsolicited SVG files delivered to workstations used by 3ds Max operators, particularly from external or unknown sources.
• Process: 3ds Max process (3dsmax.exe) crashing unexpectedly or generating access violation errors when opening SVG files.
• Logs: Application crash logs or Windows Error Reporting entries referencing 3ds Max and SVG file parsing operations; memory access violation exceptions in 3ds Max logs.
• Network: Unusual inbound file transfers (SVG files) from external sources to workstations running 3ds Max, particularly via email attachments or file-sharing services.

Autodesk has released patched versions: 3ds Max 2026.3.4 and 3ds Max 2027.2.0. Users should update to these versions or later immediately via Autodesk Access. As a workaround, organizations should restrict the import or processing of SVG files from untrusted or external sources, and consider sandboxing 3ds Max processes when handling externally sourced files (Autodesk Advisory, GitHub Advisory).