Improper input validation in macOS - CVE-2025-43294

 

Improper input validation in macOS - CVE-2025-43294

Published: September 16, 2025


Vulnerability identifier: #VU115309
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-43294
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to insufficient input validation in MallocStackLogging. A local application can access sensitive user data.


Affected software

macOS
tvOS
Apple iOS
iPadOS
watchOS

How to mitigate CVE-2025-43294

Install update from vendor's website.

macOS - update to 26.0 25A354
tvOS - update to 26.1 23J580
Apple iOS - update to 26.1 23B85
iPadOS - update to 26.1 23B85
watchOS - update to 26.1 23S37

External References

Related Security Bulletins