CVE-2025-24195 is a critical security vulnerability identified in Apple macOS operating systems, specifically addressed in versions Sequoia 15.4, Sonoma 14.7.5, and Ventura 13.7.5. The root cause is an integer overflow due to inadequate input validation, classified under CWE-276 (Incorrect Default Permissions). This flaw allows a local user to elevate privileges without requiring authentication or user interaction, meaning an attacker with access to the system can exploit this vulnerability to gain higher system privileges than intended. The vulnerability impacts confidentiality, integrity, and availability, as elevated privileges can lead to unauthorized access to sensitive data, modification or deletion of system files, and potential system disruption. The CVSS v3.1 base score is 9.8, reflecting the ease of exploitation over the network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and full impact on confidentiality, integrity, and availability (C:H/I:H/A:H). Although no known exploits are currently reported in the wild, the critical severity and potential impact necessitate urgent attention. The vulnerability affects multiple recent macOS versions, indicating a broad scope of affected systems. Apple has fixed the issue by improving input validation to prevent the integer overflow condition. Organizations using macOS should verify their versions and apply the patches promptly to mitigate risk.

The impact of CVE-2025-24195 is severe for organizations worldwide using Apple macOS systems. Successful exploitation allows attackers to gain elevated privileges without authentication or user interaction, potentially leading to full system compromise. This can result in unauthorized access to sensitive information, disruption of critical services, installation of persistent malware, and lateral movement within networks. Enterprises relying on macOS for critical infrastructure, development, or user endpoints face risks of data breaches, operational downtime, and reputational damage. The vulnerability's ease of exploitation and broad impact on confidentiality, integrity, and availability make it a significant threat. Additionally, the lack of known exploits in the wild currently provides a window for proactive patching before widespread attacks occur. Organizations with remote or shared macOS environments are particularly vulnerable due to the network attack vector and no privilege requirements.

1. Immediately update all affected macOS systems to the patched versions: Sequoia 15.4, Sonoma 14.7.5, or Ventura 13.7.5 as applicable. 2. Restrict access to macOS systems to trusted users only, minimizing exposure to untrusted or potentially malicious local users. 3. Implement strict endpoint security controls, including application whitelisting and behavior monitoring, to detect and prevent privilege escalation attempts. 4. Conduct thorough audits of user permissions and system logs to identify any suspicious activities indicative of exploitation attempts. 5. Employ network segmentation to limit the ability of attackers to move laterally if initial compromise occurs. 6. Educate users and administrators about the risks of privilege escalation vulnerabilities and the importance of timely patching. 7. Monitor threat intelligence sources for any emerging exploits targeting this vulnerability to respond rapidly. 8. Consider deploying macOS security features such as System Integrity Protection (SIP) and Endpoint Security Framework to reduce attack surface.