Exposure of sensitive information to an unauthorized actor in macOS - CVE-2025-43509
Published: December 13, 2025
Vulnerability identifier: #VU119926
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-2025-43509
CWE-ID: CWE-200
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 excessive data output in Networking. A local application can access sensitive user data.
Affected software
macOS
How to mitigate CVE-2025-43509
Install update from vendor's website.
macOS - addressed in versions 26.2 25C56, 14.8.3 23J220, 15.7.3 24G419