CVE-2024-44279 is a vulnerability identified in Apple macOS operating systems involving an out-of-bounds read condition caused by improper input validation during file parsing. Specifically, when macOS parses certain crafted files, it may read memory beyond the intended buffer boundaries, leading to unintended disclosure of user information stored in memory. This vulnerability is classified under CWE-125 (Out-of-bounds Read). The affected macOS versions include those prior to Sequoia 15.1, Sonoma 14.7.1, and Ventura 13.7.1, where Apple has implemented improved input validation to prevent this issue. The CVSS v3.1 base score is 6.5, indicating a medium severity level, with an attack vector of network (remote), low attack complexity, no privileges required, but user interaction is necessary (e.g., opening or processing a malicious file). The impact is primarily on confidentiality, as the vulnerability allows attackers to read sensitive user data but does not affect system integrity or availability. No public exploits have been reported so far. The vulnerability could be leveraged by attackers to exfiltrate sensitive information from targeted macOS systems, especially in environments where users may open untrusted files. This vulnerability underscores the importance of robust input validation in file parsing routines to prevent memory safety issues.

The primary impact of CVE-2024-44279 is unauthorized disclosure of sensitive user information due to an out-of-bounds read vulnerability in macOS file parsing. For organizations worldwide, this can lead to leakage of confidential data such as credentials, personal information, or proprietary content, potentially facilitating further attacks like phishing, identity theft, or corporate espionage. Since exploitation requires user interaction, social engineering or phishing campaigns could be used to deliver malicious files. The vulnerability does not affect system integrity or availability, so it is less likely to cause direct operational disruption. However, the confidentiality breach can have severe consequences for privacy compliance, intellectual property protection, and overall organizational security posture. Enterprises with macOS endpoints, especially those in sensitive sectors such as government, finance, healthcare, and technology, face heightened risk. The absence of known exploits in the wild provides a window for proactive patching and mitigation before widespread attacks occur.

To mitigate CVE-2024-44279, organizations should immediately deploy the security updates released by Apple in macOS Sequoia 15.1, Sonoma 14.7.1, and Ventura 13.7.1. Beyond patching, organizations should implement strict email and file filtering policies to block or quarantine suspicious files that could exploit this vulnerability. Employ endpoint protection solutions capable of detecting anomalous file parsing behaviors. Educate users to avoid opening files from untrusted or unknown sources, emphasizing the risk of social engineering. Use application whitelisting to restrict execution of unauthorized software and sandboxing techniques to isolate file processing activities. Regularly audit and monitor macOS systems for unusual memory access patterns or data exfiltration attempts. For high-risk environments, consider disabling automatic file previews or parsing features in applications that handle untrusted files. Finally, maintain comprehensive backups and incident response plans to quickly address any potential data breaches resulting from exploitation.