CVE-2025-24136 is a vulnerability identified in Apple macOS that allows a malicious application to create symbolic links (symlinks) pointing to protected regions of the disk. The root cause is insufficient validation during symlink creation, classified under CWE-59 (Improper Link Resolution Before File Access). This flaw could enable an attacker with local access and the ability to run an app to craft symlinks that redirect file operations to sensitive or protected filesystem areas, potentially bypassing intended access controls. The vulnerability affects multiple macOS versions prior to Sequoia 15.3, Sonoma 14.7.3, and Ventura 13.7.3, where Apple has implemented improved validation checks to prevent such symlink abuse. Exploitation requires user interaction (running the malicious app) but does not require elevated privileges, making it accessible to standard users. The CVSS v3.1 base score is 4.4 (medium), reflecting limited confidentiality and integrity impact without affecting availability. No known exploits have been reported in the wild to date. The vulnerability could be leveraged to access or modify files in protected areas indirectly, potentially facilitating further attacks or data leakage. Mitigation involves applying the patches released by Apple and restricting app installations to trusted sources. This vulnerability is particularly relevant to environments with high macOS usage, including enterprise, creative, and development sectors.

The primary impact of CVE-2025-24136 is on the confidentiality and integrity of data stored in protected regions of the macOS filesystem. By exploiting the symlink creation flaw, a malicious app could redirect file operations to sensitive files or directories, potentially exposing or altering data that should be inaccessible to standard users. Although the vulnerability does not affect system availability, unauthorized access or modification of protected files could facilitate privilege escalation, data leakage, or persistence mechanisms for attackers. The requirement for local access and user interaction limits the threat to environments where users may inadvertently run untrusted applications. Organizations relying on macOS devices, especially those handling sensitive data or intellectual property, could face increased risk of data compromise if patches are not applied. Additionally, the vulnerability may be leveraged as part of multi-stage attacks, increasing overall threat complexity. The absence of known exploits reduces immediate risk but does not eliminate the potential for future exploitation.

1. Apply the official Apple security updates for macOS Sequoia 15.3, Sonoma 14.7.3, Ventura 13.7.3, or later versions immediately to remediate the vulnerability. 2. Enforce strict application whitelisting policies to prevent installation or execution of untrusted or unsigned applications that could exploit symlink creation. 3. Educate users about the risks of running unknown or suspicious applications, emphasizing the importance of user interaction in exploitation. 4. Monitor filesystem changes and symlink creations in sensitive directories using endpoint detection and response (EDR) tools to detect anomalous behavior. 5. Implement least privilege principles to limit user permissions, reducing the impact of malicious apps running under standard user accounts. 6. Regularly audit installed applications and remove unnecessary or outdated software that could serve as attack vectors. 7. Employ macOS security features such as System Integrity Protection (SIP) and Full Disk Encryption (FileVault) to add layers of defense against unauthorized access. 8. Maintain up-to-date backups to recover from potential data integrity compromises.