CVE-2025-24155 is a vulnerability identified in Apple macOS that allows a local application to disclose kernel memory contents. The flaw arises from improper memory handling within the kernel, which could be exploited by an unprivileged app with user interaction to read sensitive kernel memory areas. This vulnerability is classified under CWE-200 (Information Exposure) and does not require elevated privileges, making it accessible to any app running with user-level permissions. The issue affects multiple macOS versions prior to the patched releases: macOS Sequoia 15.3, Ventura 13.7.6, and Sonoma 14.7.6. The vulnerability was addressed by Apple through improved memory handling techniques that prevent unauthorized disclosure of kernel memory. According to the CVSS v3.1 vector (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N), the attack requires local access (AV:L), low attack complexity (AC:L), no privileges (PR:N), and user interaction (UI:R). The scope remains unchanged (S:U), and the impact is high on confidentiality (C:H) but none on integrity or availability (I:N/A:N). No known exploits have been reported in the wild to date. This vulnerability could potentially allow attackers to glean sensitive kernel data, which might aid in further attacks or information gathering. The vulnerability is particularly relevant for environments where macOS devices are used for sensitive operations or development, as kernel memory disclosure could expose critical system information or secrets.

For European organizations, the primary impact of CVE-2025-24155 is the potential exposure of sensitive kernel memory data, which could include cryptographic keys, system credentials, or other confidential information. This information disclosure could facilitate subsequent targeted attacks, privilege escalation, or bypass of security controls. Organizations relying on macOS for critical infrastructure, software development, or handling sensitive personal or corporate data are at heightened risk. Although the vulnerability does not directly compromise system integrity or availability, the confidentiality breach could undermine trust and compliance with data protection regulations such as GDPR. The requirement for local access and user interaction limits remote exploitation, but insider threats or social engineering could still leverage this vulnerability. European entities with large deployments of Apple hardware, especially in sectors like finance, technology, and government, should consider this a significant risk vector. The absence of known exploits reduces immediate threat but does not eliminate the risk of future weaponization.

To mitigate CVE-2025-24155, European organizations should prioritize updating all macOS systems to the patched versions: Sequoia 15.3, Ventura 13.7.6, or Sonoma 14.7.6. Enforce strict application control policies to limit installation and execution of untrusted or unsigned applications, reducing the risk of malicious apps exploiting this vulnerability. Employ endpoint detection and response (EDR) solutions capable of monitoring unusual local app behaviors that attempt to access kernel memory. Educate users about the risks of running untrusted applications and the importance of user interaction in exploitation scenarios. Implement least privilege principles to restrict user permissions where feasible, minimizing the attack surface. Regularly audit macOS systems for compliance with patch levels and application policies. For high-security environments, consider additional kernel integrity monitoring and memory protection mechanisms. Finally, maintain up-to-date threat intelligence feeds to detect any emerging exploits targeting this vulnerability.