CVE-2025-24196 is a type confusion vulnerability identified in Apple macOS, specifically addressed in versions Sequoia 15.4 and Sonoma 14.7.5. The root cause is improper memory handling leading to type confusion, which allows an attacker possessing user-level privileges to read kernel memory. Type confusion vulnerabilities occur when a program mistakenly treats a piece of memory as a different type than intended, potentially leading to unauthorized access or corruption. In this case, the vulnerability enables reading of kernel memory, which can expose sensitive information such as cryptographic keys, passwords, or other protected data. The vulnerability requires local user privileges but no user interaction, making it easier to exploit once access is gained. The CVSS v3.1 base score of 8.8 reflects the high impact on confidentiality, integrity, and availability, with network attack vector, low attack complexity, and no user interaction needed. Although no exploits are currently known in the wild, the vulnerability poses a significant risk for privilege escalation and kernel data disclosure. The fix involves improved memory handling to prevent type confusion, and users are strongly advised to update to the patched macOS versions. This vulnerability is categorized under CWE-125 (Out-of-bounds Read), indicating that the flaw allows reading memory outside the intended bounds.

The vulnerability allows attackers with user privileges to read kernel memory, potentially exposing highly sensitive information such as kernel data structures, cryptographic keys, or passwords. This can lead to privilege escalation, where attackers gain higher system privileges, or facilitate further attacks such as bypassing security controls or compromising system integrity. The impact extends to confidentiality, integrity, and availability of affected systems. Organizations running vulnerable macOS versions risk data breaches, unauthorized access, and system instability. Critical infrastructure, enterprises, and government agencies relying on macOS could face significant operational and reputational damage if exploited. The ease of exploitation (local user privileges required but no user interaction) means insider threats or compromised user accounts could leverage this vulnerability effectively. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, especially as proof-of-concept exploits may emerge.

To mitigate this vulnerability, organizations must promptly update affected macOS systems to versions Sequoia 15.4 or Sonoma 14.7.5 or later, where the issue is fixed. Beyond patching, organizations should enforce the principle of least privilege to limit user access rights, reducing the risk of exploitation by malicious or compromised users. Employ endpoint detection and response (EDR) solutions to monitor for unusual kernel memory access patterns or privilege escalation attempts. Regularly audit user accounts and remove unnecessary local privileges. Implement strong access controls and multi-factor authentication to prevent unauthorized local access. For environments where immediate patching is not feasible, consider isolating vulnerable systems or restricting access to trusted users only. Maintain up-to-date backups and incident response plans to quickly recover from potential exploitation. Finally, stay informed on any emerging exploit reports or additional patches from Apple.