ZDI-26-176: Apple macOS libusd_ms Alembic File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. User interaction is required to exploit this vulnerability in that the target must receive a malicious file that is written to the local filesystem. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-20616.