CVE-2025-30464 is a vulnerability classified under CWE-787 (Out-of-bounds Write) affecting Apple macOS operating systems. The issue stems from improper bounds checking in kernel-level code, which allows a malicious application to write outside the intended memory boundaries. This can cause unexpected system termination (crashes) or corrupt kernel memory, potentially leading to privilege escalation or system instability. The vulnerability affects recent macOS versions including Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5, where Apple has implemented improved bounds checking to fix the issue. The CVSS v3.1 score is 7.8, indicating high severity, with an attack vector requiring local access (AV:L), low attack complexity (AC:L), no privileges required (PR:N), but user interaction is necessary (UI:R). The scope is unchanged (S:U), and the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H). Although no exploits are currently known in the wild, the vulnerability poses a significant risk due to its potential to corrupt kernel memory, which is critical for system security and stability. This type of vulnerability can be leveraged by attackers to execute arbitrary code with kernel privileges or cause denial of service. The fix involves enhanced bounds checking in the kernel code, and users are advised to update to the patched macOS versions. Since exploitation requires local presence and user interaction, the threat is primarily from malicious or compromised applications running on the device.

For European organizations, the impact of CVE-2025-30464 can be substantial, especially for those relying on macOS devices in sensitive environments such as government, finance, healthcare, and critical infrastructure sectors. Successful exploitation could lead to kernel memory corruption, resulting in system crashes, denial of service, or privilege escalation that compromises the confidentiality and integrity of sensitive data. This could disrupt business operations, lead to data breaches, or enable further lateral movement within networks. Organizations using macOS for endpoint devices, development, or operational technology are at risk. The requirement for local access and user interaction limits remote exploitation but does not eliminate risk from insider threats or phishing attacks that trick users into running malicious apps. The absence of known exploits in the wild currently reduces immediate risk but does not preclude future exploitation, making timely patching critical to prevent potential attacks.

1. Immediately apply the latest security updates from Apple for macOS Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5 or later to ensure the vulnerability is patched. 2. Restrict installation of applications to trusted sources such as the Apple App Store or verified developers to reduce the risk of malicious apps exploiting this vulnerability. 3. Implement endpoint protection solutions capable of detecting anomalous behavior indicative of kernel exploitation attempts. 4. Educate users about the risks of running untrusted applications and the importance of user interaction in exploitation scenarios. 5. Employ application whitelisting and least privilege principles to limit the ability of apps to execute potentially harmful actions. 6. Monitor system logs and kernel crash reports for signs of exploitation attempts or instability. 7. For organizations with macOS devices in critical roles, consider network segmentation and additional access controls to limit the impact of compromised endpoints. 8. Maintain an inventory of macOS devices and ensure they are regularly updated and audited for compliance with security policies.