Memory corruption in macOS - CVE-2025-43221
Published: July 30, 2025 / Updated: July 31, 2025
Vulnerability identifier: #VU113478
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:NL/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-43221
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apple Inc.
Affected software:
macOS
macOS
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a boundary error in Model I/O. A remote attacker can trick the victim into opening a specially crafted file, trigger memory corruption and execute arbitrary code on the system.
How to mitigate CVE-2025-43221
Install update from vendor's website.