CVE-2025-24236 is an access control vulnerability in Apple macOS that was addressed by implementing additional sandbox restrictions. The vulnerability allows an application to bypass existing sandbox constraints and access sensitive user data without requiring privileges, though user interaction is necessary to trigger the exploit. The issue stems from insufficient enforcement of sandbox policies, categorized under CWE-284 (Improper Access Control). This flaw could enable malicious or compromised applications to read sensitive information that should otherwise be protected by the operating system's sandboxing mechanisms. Apple fixed this vulnerability in macOS Sequoia 15.4 and macOS Sonoma 14.7.5 by enhancing sandbox restrictions to prevent unauthorized data access. The CVSS v3.1 base score is 5.5 (medium severity), reflecting the vulnerability's impact on confidentiality (high), no impact on integrity or availability, low attack complexity, no privileges required, but requiring user interaction. No public exploits have been reported, indicating limited current exploitation but a potential risk if weaponized. The vulnerability affects all macOS versions prior to the fixed releases, impacting users and organizations relying on macOS for sensitive data processing and storage.

The primary impact of CVE-2025-24236 is the unauthorized disclosure of sensitive user data on affected macOS systems. This can lead to privacy violations, leakage of confidential information, and potential downstream attacks such as identity theft or corporate espionage. Since the vulnerability requires user interaction but no privileges, it lowers the barrier for attackers to exploit via social engineering or malicious apps distributed through less controlled channels. Organizations with macOS endpoints handling sensitive or regulated data face increased risk of data breaches. Although integrity and availability are unaffected, the confidentiality breach alone can have significant reputational, legal, and financial consequences. The lack of known exploits currently limits immediate widespread impact, but the vulnerability's presence in widely used operating systems means that targeted attacks could emerge. Enterprises with mixed OS environments must prioritize patching to maintain security posture and compliance.

To mitigate CVE-2025-24236, organizations should promptly update all macOS devices to versions Sequoia 15.4 or Sonoma 14.7.5 or later, where the vulnerability is fixed. Beyond patching, administrators should enforce strict application control policies, such as using Apple’s notarization and Gatekeeper features to limit installation of untrusted apps. Employ endpoint protection solutions capable of monitoring and restricting app behaviors that attempt to access sensitive data. Educate users to avoid interacting with suspicious applications or links that could trigger exploitation. Regularly audit installed applications and sandbox configurations to ensure compliance with least privilege principles. For environments with high security requirements, consider additional data encryption and access monitoring to detect anomalous data access patterns. Maintain up-to-date backups and incident response plans to address potential data exposure incidents swiftly.