CVE-2025-43285 is a permissions-related vulnerability in Apple macOS identified as CWE-284 (Improper Access Control). The issue allows an application to bypass intended access restrictions and access protected user data without proper authorization. The root cause is insufficient enforcement of access control policies, which could enable a malicious or compromised app to read sensitive information that should be restricted. The vulnerability affects multiple recent macOS versions, including Sequoia 15.7, Sonoma 14.8, and Tahoe 26, where Apple has implemented additional restrictions to address the flaw. The CVSS 3.1 base score is 5.5, reflecting a medium severity level. The attack vector is local (AV:L), requiring the attacker to have local access to the system. The attack complexity is low (AC:L), no privileges are required (PR:N), but user interaction is necessary (UI:R). The scope is unchanged (S:U), and the impact is high on confidentiality (C:H) but none on integrity (I:N) or availability (A:N). No public exploits or active exploitation have been reported to date. This vulnerability highlights the importance of strict access control enforcement in operating systems to protect user data from unauthorized access by applications.

The primary impact of CVE-2025-43285 is unauthorized disclosure of protected user data on affected macOS systems. If exploited, malicious applications could access sensitive information such as personal files, credentials, or other private data without user consent. This breach of confidentiality can lead to privacy violations, identity theft, or further targeted attacks leveraging stolen data. Since the vulnerability does not affect integrity or availability, it does not allow data modification or system disruption. However, the ease of exploitation with no privilege requirements and only user interaction makes it a moderate risk, especially in environments where users may install untrusted applications or are targeted by social engineering. Organizations relying on macOS for sensitive operations, including enterprises, government agencies, and developers, face potential data leakage risks. The absence of known exploits reduces immediate threat but does not eliminate future risk, emphasizing the need for timely patching.

To mitigate CVE-2025-43285, organizations and users should immediately update affected macOS systems to the patched versions: Sequoia 15.7, Sonoma 14.8, or Tahoe 26. Beyond patching, implement strict application control policies such as using Apple’s notarization and Gatekeeper features to restrict installation of untrusted apps. Employ endpoint protection solutions capable of monitoring and blocking suspicious local application behaviors that attempt unauthorized data access. Educate users to avoid installing unknown or unverified software and to be cautious with prompts requiring interaction. Regularly audit installed applications and review permissions granted to apps, minimizing access to sensitive data where possible. For enterprise environments, consider deploying Mobile Device Management (MDM) solutions to enforce security policies and automate patch management. Monitoring system logs for unusual access patterns to protected data can help detect exploitation attempts early.