CVE-2024-44198 is a medium severity integer overflow vulnerability identified in Apple’s iOS and iPadOS platforms, as well as other Apple operating systems including macOS Sequoia 15, tvOS 18, visionOS 2, and watchOS 11. The root cause is an integer overflow due to insufficient input validation when processing web content, classified under CWE-190. This vulnerability can be triggered by a user visiting a maliciously crafted web page, which causes an unexpected process crash, leading to denial of service conditions. The attack vector is local, requiring user interaction but no privileges or authentication. The flaw does not impact confidentiality or integrity but affects availability by crashing processes unexpectedly. Apple has fixed this issue in their 2024 OS releases by improving input validation mechanisms. No public exploits or active exploitation campaigns have been reported to date. The CVSS v3.1 score of 5.5 reflects the medium risk posed by this vulnerability, balancing ease of exploitation with limited impact scope. Organizations relying on Apple devices should apply the latest OS updates to remediate this issue and prevent potential service disruptions.

The primary impact of CVE-2024-44198 is denial of service through unexpected process crashes on affected Apple devices. While it does not compromise data confidentiality or integrity, the disruption of critical processes can affect user experience and availability of services, especially in environments where Apple devices are used for business operations or critical communications. Organizations with large deployments of iPhones, iPads, Macs, Apple TVs, or Apple Watches may experience operational interruptions if users encounter malicious web content exploiting this vulnerability. Although no known exploits are currently active, the ease of triggering the vulnerability via web content and the widespread use of Apple devices globally elevate the risk of opportunistic attacks. This could impact sectors such as finance, healthcare, education, and government where availability and reliability of mobile and desktop platforms are essential. The vulnerability’s requirement for user interaction limits automated exploitation but does not eliminate risk from targeted phishing or malicious web campaigns.

To mitigate CVE-2024-44198, organizations and users should promptly update all affected Apple devices to the latest OS versions: iOS 18, iPadOS 18, macOS Sequoia 15, tvOS 18, visionOS 2, and watchOS 11 or later. Beyond patching, organizations should implement web content filtering and monitoring to reduce exposure to malicious websites. Employing mobile device management (MDM) solutions can enforce update policies and restrict access to untrusted web content. User education is critical to minimize risky behavior such as clicking unknown links or visiting suspicious websites. Network-level protections like DNS filtering and secure web gateways can further reduce the risk of encountering malicious web content. Monitoring device logs for abnormal process crashes may help detect attempted exploitation. Since the vulnerability requires user interaction, phishing awareness and email security controls also contribute to mitigation. Finally, organizations should maintain an inventory of Apple devices and ensure timely OS upgrades as part of their vulnerability management program.