ZDI-CAN-29483: ZDI-26-493: Apple macOS USD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

Published Jul 29, 2026

Updated

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. Interaction with the USD library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-43733.

Affected Software

1 affected component

Apple macOS

Event History

Jul 29, 2026

Advisory Published

via ZDI·05:00 AM

Data Sourced

via ZDI·05:00 AM

Description

Frequently Asked Questions

What is the severity of ZDI-CAN-29483?

ZDI-CAN-29483 has a CVSS rating of 7.8, indicating a high severity level.

How do I fix ZDI-CAN-29483?

To fix ZDI-CAN-29483, ensure your Apple macOS is updated to the latest version that addresses this vulnerability.

What type of vulnerability is ZDI-CAN-29483?

ZDI-CAN-29483 is a heap-based buffer overflow vulnerability that can lead to remote code execution.

Who is affected by ZDI-CAN-29483?

Users running affected versions of Apple macOS that utilize the USD library are at risk from ZDI-CAN-29483.

What must occur for ZDI-CAN-29483 to be exploited?

Exploitation of ZDI-CAN-29483 requires interaction with the USD library, although specific attack vectors may vary.