CVE-2024-44199 is a vulnerability in Apple macOS identified as an out-of-bounds read (CWE-125) caused by insufficient input validation. This flaw allows a local application with limited privileges to read kernel memory beyond intended boundaries, which can lead to unauthorized disclosure of sensitive information stored in kernel space. Additionally, the vulnerability can cause unexpected system termination, resulting in denial of service due to system crashes. The issue was addressed by Apple in macOS Sonoma 14.6 through improved input validation mechanisms that prevent out-of-bounds memory access. The CVSS v3.1 base score is 7.1, reflecting high severity, with the vector indicating local attack vector (AV:L), low attack complexity (AC:L), requiring privileges (PR:L), no user interaction (UI:N), unchanged scope (S:U), high confidentiality impact (C:H), no integrity impact (I:N), and high availability impact (A:H). Exploitation requires local access with limited privileges but no user interaction, making it a significant risk for systems where untrusted or malicious local applications may run. No public exploits are known at this time, but the vulnerability's nature suggests potential for information disclosure and denial of service attacks if exploited.

The primary impact of CVE-2024-44199 is twofold: confidentiality and availability. Confidentiality is compromised because an attacker can read kernel memory, potentially exposing sensitive data such as cryptographic keys, passwords, or other protected information. Availability is affected as exploitation can cause unexpected system termination, leading to crashes and denial of service. For organizations, this means that systems running vulnerable macOS versions could be destabilized or have sensitive kernel data exposed if an attacker gains local access. This risk is particularly critical in environments where multiple users share systems, or where untrusted applications may be executed. The vulnerability does not affect integrity directly, but the exposure of kernel memory can facilitate further attacks. The requirement for local privileges limits remote exploitation but does not eliminate risk in environments with untrusted local users or compromised accounts. The absence of known exploits in the wild reduces immediate risk but does not preclude future exploitation attempts.

Organizations should promptly update affected macOS systems to version Sonoma 14.6 or later, where the vulnerability is patched. Beyond patching, organizations should enforce strict application control policies to limit execution of untrusted or unsigned applications, reducing the risk of local exploitation. Employing endpoint detection and response (EDR) solutions can help identify anomalous behavior indicative of exploitation attempts. System administrators should also restrict local user privileges to the minimum necessary and monitor for unusual system crashes or kernel memory access patterns. For environments with shared or multi-user systems, consider implementing sandboxing and mandatory access controls to isolate applications and limit their ability to access kernel memory. Regularly auditing installed software and running processes can help detect unauthorized or suspicious applications that might attempt exploitation. Finally, educating users about the risks of running untrusted software locally can reduce exposure.