CVE-2024-54527 is a vulnerability identified in Apple tvOS and related Apple operating systems, including watchOS, macOS, iOS, and iPadOS. The issue arises from insufficient access control checks within the tvOS environment, allowing an application with limited privileges (local access and some privileges) to access sensitive user data that should otherwise be protected. The vulnerability does not require user interaction, which means an app could exploit this flaw silently once installed. The CVSS 3.1 base score is 5.5 (medium severity), reflecting the local attack vector (AV:L), low attack complexity (AC:L), and requirement for privileges (PR:L) but no user interaction (UI:N). The impact is primarily on confidentiality (C:H), with no impact on integrity (I:N) or availability (A:N). Apple has addressed this vulnerability by improving access checks and released fixes in watchOS 11.2, tvOS 18.2, macOS Sequoia 15.2, iOS 18.2, iPadOS 18.2, macOS Ventura 13.7.2, and macOS Sonoma 14.7.2. No public exploits or active exploitation have been reported to date. The vulnerability affects unspecified versions prior to these patches, so any unpatched Apple TV or related Apple devices remain at risk. The flaw could be exploited by malicious apps to silently extract sensitive user data, potentially including personal information or usage data, which could lead to privacy violations or targeted attacks.

For European organizations, the primary impact of CVE-2024-54527 is the potential unauthorized disclosure of sensitive user data on Apple TV devices and other Apple platforms within their environment. This could affect enterprises using Apple TV for digital signage, conferencing, or media consumption, as well as individual users within organizations. The confidentiality breach could lead to privacy violations, regulatory non-compliance (e.g., GDPR), and potential reputational damage. Since the vulnerability requires local privileges, the risk is higher in environments where users can install apps or where devices are shared or less controlled. There is no direct impact on system integrity or availability, so operational disruption is unlikely. However, sensitive data leakage could facilitate further targeted attacks or insider threats. The lack of known exploits reduces immediate risk but does not eliminate the threat, especially in high-value targets or sectors with sensitive data. Organizations relying heavily on Apple ecosystems should prioritize patching to mitigate these risks.

1. Immediately update all Apple devices including Apple TV, watchOS, macOS, iOS, and iPadOS to the fixed versions (tvOS 18.2, watchOS 11.2, macOS Sequoia 15.2, iOS/iPadOS 18.2, macOS Ventura 13.7.2, macOS Sonoma 14.7.2) to ensure the vulnerability is patched. 2. Restrict installation of apps on Apple TV and other Apple devices to trusted sources only, such as the official App Store, and enforce app vetting policies. 3. Implement strict device management policies using Mobile Device Management (MDM) solutions to control app permissions and monitor for unauthorized app installations. 4. Limit user privileges on Apple devices to the minimum necessary to reduce the risk of local privilege exploitation. 5. Monitor device logs and network traffic for unusual access patterns or data exfiltration attempts from Apple devices. 6. Educate users about the risks of installing untrusted applications and the importance of applying updates promptly. 7. For organizations using Apple TV in shared or public environments, consider additional physical security controls to prevent unauthorized device access. 8. Regularly audit Apple device inventories and patch status to ensure compliance with security policies.