CVE-2025-31260 is a permissions-related vulnerability affecting Apple macOS, specifically addressed in macOS Sequoia 15.5. The issue stems from insufficient access control restrictions that allow an application with limited privileges (local access with low privileges) to access sensitive user data without requiring user interaction. The vulnerability is classified under CWE-284, indicating improper access control. The CVSS v3.1 score is 5.5 (medium severity), with the vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N, meaning the attack requires local access and low privileges, no user interaction, and impacts confidentiality significantly but not integrity or availability. Although no known exploits are currently reported in the wild, the potential for sensitive data exposure is significant. The vulnerability highlights a gap in macOS's permission enforcement mechanisms, which Apple has addressed by implementing additional restrictions in the latest update. This flaw could be exploited by malicious or compromised applications running on the affected macOS versions to access data that should be protected by the operating system's security model.

The primary impact of CVE-2025-31260 is unauthorized disclosure of sensitive user data, which can lead to privacy violations, data leakage, and potential further exploitation if the data includes credentials or personal information. Since the vulnerability does not affect integrity or availability, it does not allow modification or disruption of system operations. However, the confidentiality breach can undermine trust in affected systems and may expose organizations to compliance violations, especially those handling sensitive or regulated data. The requirement for local access and low privileges limits remote exploitation but does not eliminate risk in environments where users may install untrusted applications or where insider threats exist. Organizations relying on macOS devices, particularly in sectors such as finance, healthcare, and government, may face increased risk if devices are not promptly updated.

To mitigate CVE-2025-31260, organizations should prioritize updating all macOS devices to version Sequoia 15.5 or later, where the vulnerability is fixed. Beyond patching, implement strict application control policies to limit installation and execution of untrusted or unnecessary applications, reducing the risk of local exploitation. Employ endpoint detection and response (EDR) solutions to monitor for suspicious local activity that could indicate attempts to access sensitive data improperly. Enforce the principle of least privilege for user accounts to minimize the impact of compromised or malicious applications. Additionally, conduct regular audits of application permissions and user data access patterns to detect anomalies. Educate users about the risks of installing unverified software and maintain robust backup and data protection strategies to safeguard sensitive information.