CVE-2025-30463 is a vulnerability identified in Apple iOS and iPadOS platforms that allows an application to access sensitive user data improperly. The root cause lies in insufficient restrictions on data container access, which are the isolated storage areas assigned to apps to protect user data privacy. This vulnerability falls under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). Exploitation requires an attacker to convince a user to interact with a malicious app, which then leverages the flaw to access sensitive data from other app containers or system areas that should be isolated. The vulnerability does not require any privileges or prior authentication, but user interaction is necessary. The CVSS v3.1 score is 5.5 (medium), with the vector indicating local attack vector (AV:L), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), unchanged scope (S:U), high confidentiality impact (C:H), and no impact on integrity or availability (I:N/A:N). Apple addressed this issue in iOS 18.4, iPadOS 18.4, and macOS Sequoia 15.4 by enhancing the enforcement of data container access restrictions, thereby preventing unauthorized data exposure. No public exploits or active exploitation have been reported to date. This vulnerability poses a risk primarily to user privacy and confidentiality, as sensitive data could be exposed to malicious applications installed on the device.

For European organizations, the primary impact of CVE-2025-30463 is the potential unauthorized disclosure of sensitive user data on Apple mobile devices. This could include corporate data accessed via apps, personal information, or credentials stored within app containers. Such data leakage could lead to privacy violations, regulatory non-compliance (e.g., GDPR), reputational damage, and potential financial losses. Organizations relying heavily on iOS and iPadOS devices for business operations, especially those handling sensitive or regulated data, are at risk. The requirement for user interaction means social engineering or phishing tactics may be used to trick users into installing or interacting with malicious apps. Although the vulnerability does not affect system integrity or availability, the confidentiality breach alone can have significant consequences, especially in sectors like finance, healthcare, and government. The absence of known exploits reduces immediate risk but does not eliminate the threat, emphasizing the need for timely patching.

1. Immediately update all Apple devices to iOS 18.4, iPadOS 18.4, or macOS Sequoia 15.4 or later to apply the security fix. 2. Enforce strict mobile device management (MDM) policies to control app installations, limiting them to trusted sources such as the official Apple App Store and vetted enterprise apps. 3. Educate users about the risks of installing untrusted apps and the importance of avoiding suspicious links or prompts that could lead to malicious app installation. 4. Implement application whitelisting and use Apple’s built-in security features like App Transport Security and data protection APIs to minimize data exposure. 5. Regularly audit installed apps and monitor device logs for unusual access patterns or data exfiltration attempts. 6. For high-risk environments, consider restricting the use of personal devices or enforcing strict BYOD policies with enhanced security controls. 7. Coordinate with Apple support and security advisories to stay informed about any emerging threats or additional patches related to this vulnerability.