CVE-2025-24161 is a vulnerability in Apple’s iOS and iPadOS operating systems that arises from improper handling of file parsing operations. Specifically, when an application parses a specially crafted file, the lack of adequate validation and error handling can cause the app to terminate unexpectedly, resulting in a denial of service condition. This vulnerability is classified under CWE-754, which involves improper checks for unusual or exceptional conditions. The flaw affects multiple Apple platforms, including iOS, iPadOS, macOS Sequoia and Sonoma, tvOS, visionOS, and watchOS, with fixes released in versions iOS 18.3, iPadOS 18.3 and 17.7.4, macOS Sequoia 15.3, Sonoma 14.7.3, tvOS 18.3, visionOS 2.3, and watchOS 11.3. The CVSS v3.1 base score is 5.5 (medium), reflecting that the vulnerability requires local access (AV:L), low attack complexity (AC:L), no privileges (PR:N), but user interaction (UI:R) is necessary to trigger the issue. The vulnerability impacts availability (A:H) but does not affect confidentiality or integrity. No known exploits have been reported in the wild, indicating limited current threat activity. The root cause is insufficient validation during file parsing, which Apple has addressed by implementing improved checks to prevent unexpected app termination. This vulnerability could be exploited by tricking users into opening maliciously crafted files, causing apps to crash and potentially disrupting workflows or services.

The primary impact of CVE-2025-24161 is denial of service through unexpected app termination on Apple devices. For organizations, this can translate into productivity loss, disruption of critical applications, and potential operational downtime, especially in environments heavily reliant on Apple mobile and desktop platforms. While the vulnerability does not compromise data confidentiality or integrity, repeated or targeted exploitation could degrade user experience and trust in affected applications. In enterprise or government contexts where availability is critical, such disruptions could affect communication, data access, or service delivery. The requirement for user interaction limits remote exploitation but does not eliminate risk, as social engineering or phishing could be used to deliver malicious files. The absence of known exploits suggests a window of opportunity for defenders to patch systems before widespread abuse. However, unpatched devices remain vulnerable to potential future exploitation, particularly in sectors where Apple devices are prevalent.

Organizations should prioritize updating affected Apple operating systems to the patched versions: iOS 18.3, iPadOS 18.3 and 17.7.4, macOS Sequoia 15.3, macOS Sonoma 14.7.3, tvOS 18.3, visionOS 2.3, and watchOS 11.3. Beyond patching, implement strict controls on file sources by restricting or scanning files received via email, messaging apps, or downloads to detect and block malformed or suspicious files. Educate users about the risks of opening files from untrusted sources and encourage cautious behavior to reduce the likelihood of triggering the vulnerability. Employ mobile device management (MDM) solutions to enforce timely updates and monitor application stability for signs of exploitation. For critical environments, consider application whitelisting and sandboxing to limit the impact of app crashes. Regularly review logs and crash reports for unusual patterns that may indicate attempted exploitation. Finally, maintain an incident response plan that includes procedures for handling denial of service incidents on Apple devices.