CVE-2024-44220 is a vulnerability identified in Apple macOS that arises from improper memory handling when parsing specially crafted video files. This flaw can lead to unexpected system termination, effectively causing a denial-of-service (DoS) condition. The vulnerability is classified under CWE-434, which relates to improper handling of externally supplied data leading to resource exhaustion or system crashes. The issue was addressed by Apple in macOS Sequoia 15.2 and macOS Sonoma 14.7.2 through improved memory management techniques that prevent the system from crashing when processing malicious video content. The CVSS v3.1 score of 6.5 reflects a medium severity level, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R). The scope is unchanged (S:U), and the impact is limited to availability (A:H) with no confidentiality or integrity impact. This means an attacker can remotely deliver a malicious video file, and if a user opens or previews it, the system may crash, causing disruption. There are no known exploits in the wild at this time, but the vulnerability poses a risk to systems that handle untrusted video files, especially in environments where uptime is critical. The affected versions are unspecified but are all versions prior to the patched releases. This vulnerability highlights the importance of robust input validation and memory management in media processing components of operating systems.

For European organizations, the primary impact of CVE-2024-44220 is availability disruption due to unexpected system termination on affected macOS devices. This can lead to denial-of-service conditions, potentially interrupting business operations, especially in sectors relying heavily on Apple hardware such as creative industries, education, and certain government agencies. While the vulnerability does not compromise confidentiality or integrity, repeated crashes or system instability could degrade user productivity and increase support costs. Organizations processing large volumes of video files or receiving video content from external sources (e.g., media companies, broadcasters, marketing firms) are at higher risk. The lack of known exploits reduces immediate threat but does not eliminate the risk of future exploitation. Additionally, the requirement for user interaction means social engineering or phishing campaigns could be used to deliver the malicious video payload. Disruption in critical infrastructure or public services using macOS could have wider societal impacts. Therefore, timely patching and cautious handling of video files are essential to mitigate operational risks.

1. Immediately update all macOS devices to macOS Sequoia 15.2, macOS Sonoma 14.7.2, or later versions where the vulnerability is patched. 2. Implement strict policies to restrict opening or previewing video files from untrusted or unknown sources, especially in email attachments or web downloads. 3. Use endpoint protection solutions capable of scanning and blocking malicious media files before they reach end users. 4. Educate users about the risks of opening unsolicited or suspicious video files to reduce the likelihood of triggering the vulnerability. 5. Employ network-level controls such as sandboxing or content disarming for media files entering the corporate environment. 6. Monitor system logs and crash reports for signs of unexpected terminations that could indicate attempted exploitation. 7. For organizations with critical macOS infrastructure, consider isolating vulnerable systems until patched to prevent disruption. 8. Coordinate with Apple support channels for guidance and to stay informed about any emerging exploit activity or additional patches.