CVE-2025-43382 is a vulnerability in Apple macOS related to improper handling of directory paths during parsing, leading to a potential directory traversal issue (CWE-22). This flaw allows an application running with limited privileges to bypass intended directory restrictions and access sensitive user data that should otherwise be protected. The vulnerability arises from insufficient validation of directory paths, enabling an attacker to craft or manipulate paths to access files outside the allowed directories. The issue affects multiple macOS versions prior to the patched releases: macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, and macOS Tahoe 26.1. The vulnerability has a CVSS 3.1 base score of 5.5, indicating medium severity, with an attack vector of local access (AV:L), low attack complexity (AC:L), requiring low privileges (PR:L), no user interaction (UI:N), and impacting confidentiality (C:H) but not integrity or availability. No known exploits have been reported in the wild, suggesting limited active exploitation at this time. The vulnerability could be leveraged by malicious local applications or attackers who have gained limited access to a system to extract sensitive user information, potentially leading to privacy breaches or further targeted attacks. Apple addressed this issue by improving path validation mechanisms to prevent directory traversal and unauthorized data access.

The primary impact of CVE-2025-43382 is unauthorized disclosure of sensitive user data on affected macOS systems. Since the vulnerability allows local applications with low privileges to bypass directory restrictions, attackers who gain limited access to a system could escalate their ability to gather confidential information, such as personal files, credentials, or other sensitive data stored in user directories. This can lead to privacy violations, intellectual property theft, or facilitate further attacks like privilege escalation or lateral movement within a network. Although the vulnerability does not affect system integrity or availability, the exposure of sensitive data can have significant consequences for individuals and organizations, including regulatory compliance issues and reputational damage. The requirement for local access limits remote exploitation, but insider threats or malware already present on a device could exploit this flaw. Organizations relying heavily on macOS devices, especially in sectors handling sensitive data such as finance, healthcare, or government, face increased risk if patches are not applied promptly.

To mitigate CVE-2025-43382, organizations should immediately deploy the security updates released by Apple for macOS Sequoia 15.7.2, Sonoma 14.8.2, and Tahoe 26.1 or later. Beyond patching, organizations should enforce strict application control policies to limit the 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 indicative of attempts to access unauthorized directories. Regularly audit user permissions and restrict local user privileges to the minimum necessary to reduce the attack surface. Educate users about the risks of installing unknown software and maintain robust backup procedures to protect sensitive data. For environments with high security requirements, consider implementing macOS security features such as System Integrity Protection (SIP) and sandboxing to further limit application capabilities. Finally, maintain an inventory of macOS devices and ensure timely patch management processes are in place to address vulnerabilities promptly.