CVE-2025-43325 is an access control vulnerability in Apple macOS identified as CWE-284, which relates to improper access restrictions. The root cause stems from insufficient sandboxing measures that allowed applications to bypass intended access controls and read sensitive user data. The vulnerability requires local access (AV:L), low attack complexity (AC:L), no privileges (PR:N), and user interaction (UI:R) to exploit. The scope is unchanged (S:U), meaning the impact is limited to the vulnerable component without affecting other system components. The confidentiality impact is high (C:H), while integrity and availability remain unaffected (I:N, A:N). Apple addressed this issue by implementing additional sandbox restrictions in macOS Tahoe 26, effectively preventing unauthorized data access by untrusted applications. Although no exploits have been observed in the wild, the vulnerability poses a risk to user privacy and data confidentiality on affected macOS versions.

The primary impact of CVE-2025-43325 is unauthorized access to sensitive user data on macOS systems, which can lead to privacy violations and potential leakage of personal or corporate information. Since the vulnerability does not affect system integrity or availability, it does not enable data modification or denial of service. However, the confidentiality breach can have significant consequences, especially for organizations handling sensitive or regulated data. Attackers could leverage this flaw to extract credentials, personal files, or other confidential information if they can convince a user to interact with a malicious app. This risk is particularly critical in environments where macOS devices are used for sensitive communications, intellectual property storage, or compliance-bound data processing.

To mitigate CVE-2025-43325, organizations should promptly update all macOS devices to macOS Tahoe 26 or later, where the vulnerability is fixed through enhanced sandbox restrictions. Until patching is possible, restrict the installation of untrusted or unsigned applications and enforce strict application whitelisting policies. Employ endpoint protection solutions that monitor for unusual app behavior or unauthorized data access attempts. Educate users to avoid interacting with unknown or suspicious applications, as exploitation requires user interaction. Additionally, review and tighten sandbox configurations and access control policies for apps, especially those with access to sensitive data. Regularly audit installed software and remove unnecessary or outdated applications that may increase the attack surface.