Memory corruption in macOS - CVE-2025-43447

 

Memory corruption in macOS - CVE-2025-43447

Published: November 4, 2025


Vulnerability identifier: #VU117974
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-43447
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a boundary error in Apple Neural Engine. A local application can cause unexpected system termination or corrupt kernel memory.


Affected software

macOS
visionOS
Apple iOS
iPadOS
watchOS

How to mitigate CVE-2025-43447

Install update from vendor's website.

macOS - update to 26.1 25B78
visionOS - update to 26.1
Apple iOS - update to 26.1 23B85
iPadOS - update to 26.1 23B85
watchOS - update to 26.1 23S37

External References

Related Security Bulletins