CVE-2025-24228 is a buffer overflow vulnerability identified in Apple macOS that allows an application to execute arbitrary code with kernel-level privileges. The root cause is improper memory handling leading to a buffer overflow condition, classified under CWE-125 (Out-of-bounds Read). This vulnerability enables privilege escalation from a user-level process to the kernel, effectively granting full control over the affected system. The issue affects multiple macOS versions before Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5, where Apple has implemented improved memory handling to fix the flaw. Exploitation requires local access and user interaction, such as running a malicious app, but does not require prior privileges or authentication. The CVSS v3.1 score is 7.8, reflecting high severity due to the potential for complete system compromise impacting confidentiality, integrity, and availability. Although no known exploits are currently reported in the wild, the vulnerability poses a significant risk given the elevated privileges that can be obtained. Attackers could leverage this flaw to install persistent malware, bypass security controls, or disrupt system operations. The vulnerability is particularly critical for environments where macOS devices handle sensitive data or are part of critical infrastructure.

The impact of CVE-2025-24228 is substantial because successful exploitation grants an attacker kernel-level code execution, effectively full control over the affected macOS system. This compromises confidentiality by allowing access to all data, integrity by enabling unauthorized modification of system files and processes, and availability by potentially causing system crashes or persistent malware infections. Organizations relying on macOS devices for sensitive operations, development, or infrastructure management face increased risk of data breaches, espionage, or sabotage. The requirement for local access and user interaction limits remote exploitation but does not eliminate risk, especially in environments where users may run untrusted applications or where attackers have physical or remote desktop access. The absence of known exploits in the wild suggests limited current exploitation but also highlights the importance of proactive patching to prevent future attacks. The vulnerability could be leveraged in targeted attacks against high-value individuals or organizations, including government agencies, technology firms, and enterprises with macOS deployments.

To mitigate CVE-2025-24228, organizations should immediately apply the security updates provided in macOS Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5, which contain the fix for this buffer overflow vulnerability. Beyond patching, organizations should enforce strict application control policies, such as using Apple’s notarization and Gatekeeper features to restrict execution of untrusted or unsigned applications. Employ endpoint protection solutions capable of detecting anomalous behavior indicative of privilege escalation attempts. Limit user privileges to the minimum necessary and educate users about the risks of running unverified software. Regularly audit and monitor macOS systems for unusual kernel activity or signs of compromise. For environments with heightened security requirements, consider deploying macOS security configurations that restrict kernel extension loading and enable System Integrity Protection (SIP). Maintain comprehensive backups to recover from potential compromise. Finally, stay informed on Apple security advisories and threat intelligence updates related to macOS vulnerabilities.