Improper access control in macOS - CVE-2025-43323

Vulnerability identifier: #VU118078

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-2025-43323

CWE-ID: CWE-284

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to improper access restrictions in CloudKit. A local application can fingerprint the user.

macOS
iPadOS
Apple iOS
watchOS
tvOS
visionOS

Install updates from vendor's website.

macOS - update to 26.0 25A354
iPadOS - update to 26.0 23A341
Apple iOS - update to 26.0 23A341
watchOS - update to 26.0 23R352
tvOS - update to 26.0 23J353
visionOS - update to 26.0 23M336

• https://support.apple.com/en-us/125110

• Multiple vulnerabilities in Apple macOS Tahoe
• Multiple vulnerabilities in Apple watchOS
• Multiple vulnerabilities in Apple visionOS
• Multiple vulnerabilities in Apple tvOS
• Multiple vulnerabilities in Apple iOS 26 and iPadOS 26