CVE-2024-44144 is a buffer overflow vulnerability identified in Apple’s iOS, iPadOS, and several other Apple operating systems including macOS Sequoia and Sonoma, tvOS, visionOS, and watchOS. The root cause is insufficient size validation when processing certain file types, allowing a maliciously crafted file to trigger a buffer overflow condition. This flaw can cause unexpected termination of applications that process such files, effectively resulting in a denial-of-service (DoS) condition. The vulnerability is classified under CWE-120 (Classic Buffer Overflow). Exploitation requires local access and user interaction, as the victim must open or process the malicious file. The CVSS v3.1 base score is 5.5 (medium severity), reflecting the limited impact on confidentiality and integrity but significant impact on availability. Apple has addressed this issue in updates iOS 17.7.1, iPadOS 17.7.1, iOS 18, iPadOS 18, macOS Sequoia 15, macOS Sonoma 14.7.1, tvOS 18, visionOS 2, and watchOS 11. No public exploits or active exploitation have been reported to date. The vulnerability highlights the importance of robust input validation to prevent memory corruption issues in file processing components.

The primary impact of CVE-2024-44144 is denial of service through unexpected application termination, which can disrupt user productivity and potentially affect critical applications on Apple devices. While it does not compromise confidentiality or integrity, repeated exploitation could degrade system reliability and user trust. Organizations relying heavily on Apple ecosystems, including enterprises, educational institutions, and government agencies, may face operational interruptions if users open malicious files. The requirement for user interaction limits remote exploitation, but targeted attacks via phishing or malicious file distribution remain plausible. The vulnerability could be leveraged in multi-stage attacks to cause distraction or disruption. Overall, the impact is moderate but significant enough to warrant timely patching to maintain system stability and security posture.

To mitigate CVE-2024-44144, organizations and users should promptly apply the security updates released by Apple for iOS 17.7.1, iPadOS 17.7.1, iOS 18, iPadOS 18, macOS Sequoia 15, macOS Sonoma 14.7.1, tvOS 18, visionOS 2, and watchOS 11. Beyond patching, organizations should implement strict file handling policies, including restricting the opening of files from untrusted sources and employing email filtering to block potentially malicious attachments. Endpoint protection solutions with behavior-based detection can help identify anomalous application crashes. User awareness training should emphasize caution when opening files from unknown or suspicious origins. For environments with high security requirements, consider sandboxing or isolating applications that process untrusted files to limit the impact of crashes. Regularly auditing and monitoring application logs for unexpected terminations can aid in early detection of exploitation attempts.