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. A malicious actor can leverage this flaw to cause a crash, read sensitive data, or execute arbitrary code in the context of the current process. Affected versions include 3ds Max 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. It carries a CVSS v3.1 base score of 7.8 (High) per NVD, though Autodesk's own advisory scores it at 5.3 (Medium) (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 crafts a malicious SVG file designed to trigger a read operation beyond the intended buffer, potentially exposing adjacent memory contents or corrupting program state in a way that enables code execution. Exploitation requires local access and user interaction — specifically, a victim must open or import the malicious SVG file within 3ds Max. No public proof-of-concept code has been identified at this time (Github Advisory, Autodesk Advisory).

Successful exploitation can result in application crashes (denial of service), disclosure of sensitive memory data from the 3ds Max process, or arbitrary code execution with the privileges of the current user running 3ds Max. The impact is confined to the scope of the affected process (no scope change), but code execution could enable an attacker to pivot to further actions on the compromised workstation, including data theft or installation of malware. Design and engineering environments using 3ds Max are particularly at risk if users routinely open files from untrusted external sources (Github Advisory, Autodesk Advisory).

There is no evidence of active in-the-wild exploitation or a publicly available proof-of-concept exploit as of the time of publication. The EPSS score is approximately 0.25%, indicating a low near-term probability of exploitation. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Exploitation is not automatable and requires user interaction (opening a malicious SVG file), which limits the attack surface (Github Advisory, Autodesk Advisory).

1. Craft malicious SVG: An attacker creates 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: The attacker delivers the malicious SVG to a target user via email attachment, file-sharing platform, or by embedding it in a project archive — social engineering the victim into opening it in 3ds Max.
3. Trigger parsing: The victim opens or imports the SVG file within Autodesk 3ds Max (versions 2026 < 2026.3.4 or 2027 < 2027.2.0), causing the vulnerable parser to read memory beyond the intended buffer boundary.
4. Achieve objective: Depending on the crafted payload and memory layout, the attacker may cause a crash (DoS), leak sensitive memory contents (information disclosure), or achieve arbitrary code execution in the context of the 3ds Max process (Github Advisory, Autodesk Advisory).

• File System: Unexpected or unsolicited SVG files delivered to 3ds Max users, particularly from external or unknown sources; SVG files with anomalous structure or unusually large data fields.
• Process: 3ds Max (3dsmax.exe) crashing unexpectedly or generating access violation errors when opening SVG files; unusual child processes spawned by 3dsmax.exe following SVG file import.
• Logs: Windows Event Log entries (Application log) recording faulting module errors associated with 3ds Max's SVG parsing component; crash dump files (*.dmp) generated in the 3ds Max installation or user profile directory.
• Network: Unexpected outbound network connections from 3dsmax.exe following the opening of an SVG file, which may indicate post-exploitation activity.

Autodesk has released patched versions addressing this vulnerability: 3ds Max 2026.3.4 and 3ds Max 2027.2. Users should update to these versions or later immediately via Autodesk Access or the Autodesk desktop app. As a workaround, organizations should restrict the import or processing of SVG files from untrusted or external sources within 3ds Max, and consider sandboxing 3ds Max processes when handling externally sourced files (Autodesk Advisory, Github Advisory).