CVE-2025-24134 is an information disclosure vulnerability identified in Apple macOS, fixed in the Sequoia 15.3 update. The vulnerability arises from insufficient privacy controls that allow an application to access sensitive user data without requiring privileges (PR:N) but does require user interaction (UI:R). The attack vector is local (AV:L), meaning the attacker must have local access to the device. The vulnerability impacts confidentiality (C:H) but does not affect integrity or availability. The CVSS 3.1 base score is 5.5, reflecting a medium severity. The flaw is categorized under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). While the affected macOS versions are unspecified, the fix is included in Sequoia 15.3. No known exploits are currently reported in the wild. The vulnerability could allow malicious apps or attackers with local access to extract sensitive information such as personal data, credentials, or other private content, potentially leading to privacy violations or further targeted attacks. The requirement for user interaction limits automated exploitation but does not eliminate risk, especially in environments where users may be tricked into granting permissions or running malicious apps. This vulnerability underscores the importance of strict privacy controls and user permission management in macOS environments.

For European organizations, this vulnerability could lead to unauthorized disclosure of sensitive user data on macOS devices, potentially exposing personal information, corporate credentials, or confidential documents. This could result in privacy breaches, regulatory non-compliance (e.g., GDPR), reputational damage, and increased risk of follow-on attacks such as phishing or lateral movement within networks. Organizations with a significant macOS user base, especially in sectors like finance, healthcare, legal, and government, may face elevated risks. The local and user interaction requirements reduce the likelihood of widespread automated attacks but do not eliminate insider threats or targeted attacks leveraging social engineering. Data leakage incidents could trigger mandatory breach notifications under European data protection laws, leading to financial penalties and operational disruptions.

European organizations should prioritize updating all macOS devices to Sequoia 15.3 or later to apply the security fix. Implement strict application control policies using Apple’s Endpoint Security framework or Mobile Device Management (MDM) solutions to restrict app installation and permissions, minimizing the risk of malicious apps accessing sensitive data. Educate users about the risks of granting permissions and interacting with untrusted applications to reduce social engineering attack vectors. Conduct regular audits of installed applications and their permissions to detect and remove unauthorized or suspicious software. Employ endpoint detection and response (EDR) tools capable of monitoring for unusual local access patterns or attempts to access sensitive data. For highly sensitive environments, consider restricting macOS device usage or enforcing additional security layers such as full disk encryption and multi-factor authentication to protect data confidentiality. Maintain an up-to-date inventory of macOS devices and ensure timely patch management processes are in place.