CVE-2025-30427 is a use-after-free vulnerability identified in Safari's web content processing engine affecting multiple Apple platforms, including tvOS, visionOS, iOS, iPadOS, and macOS. The vulnerability arises from improper memory management where a freed memory object is accessed again, leading to undefined behavior and an unexpected application crash. Specifically, when Safari processes maliciously crafted web content, it can trigger this use-after-free condition, causing the browser or the underlying system component to crash unexpectedly. This vulnerability is categorized under CWE-416 (Use After Free). The issue does not allow for code execution or data leakage but impacts availability by causing denial-of-service conditions. Exploitation requires no privileges and no authentication but does require user interaction, such as visiting a malicious webpage or viewing crafted content. The CVSS v3.1 base score is 4.3 (medium severity), reflecting network attack vector, low complexity, no privileges required, user interaction needed, and impact limited to availability. Apple has addressed this vulnerability in the latest updates: tvOS 18.4, visionOS 2.4, iOS 18.4, iPadOS 17.7.6 and 18.4, macOS Sequoia 15.4, and Safari 18.4. No public exploits or active exploitation have been reported as of the publication date. This vulnerability primarily affects devices running vulnerable versions of Apple’s operating systems and Safari browser, including Apple TV devices, iPhones, iPads, Macs, and visionOS devices.

For European organizations, the primary impact of CVE-2025-30427 is availability disruption due to unexpected crashes of Safari or Apple TV devices when processing malicious web content. This can lead to denial-of-service conditions affecting user productivity, customer experience, or service availability, especially in environments relying on Apple TV for digital signage, media streaming, or conferencing. Although the vulnerability does not compromise confidentiality or integrity, repeated crashes could cause operational disruptions. Enterprises with Apple device fleets, particularly in sectors like media, entertainment, education, and corporate environments using Apple TV for presentations or collaboration, may experience service interruptions. The lack of known exploits reduces immediate risk, but the ease of triggering the crash via web content means attackers could craft phishing or malicious web pages targeting users. Additionally, organizations with remote or hybrid workforces using Safari on vulnerable devices could face increased exposure. The impact is mitigated by the availability of patches, but delayed updates could increase risk.

1. Apply the latest security updates from Apple immediately: tvOS 18.4, visionOS 2.4, iOS 18.4, iPadOS 17.7.6/18.4, macOS Sequoia 15.4, and Safari 18.4. 2. Restrict access to untrusted or unknown web content on Apple devices, especially Apple TV units used in corporate environments, by implementing web filtering or content security policies. 3. Educate users to avoid clicking on suspicious links or visiting untrusted websites that could host maliciously crafted content. 4. Monitor Apple device logs and Safari crash reports for unusual patterns that may indicate exploitation attempts or repeated crashes. 5. For organizations using Apple TV for critical functions, consider network segmentation and limiting internet access to reduce exposure. 6. Employ endpoint detection and response (EDR) solutions that support Apple platforms to detect abnormal application behavior. 7. Maintain an inventory of Apple devices and ensure patch management processes include these platforms promptly. 8. If possible, disable or limit Safari usage on Apple TV devices where not required, or use alternative secure browsers if supported.