CVE-2025-24259 is a critical security vulnerability identified in Apple iPadOS and macOS platforms, specifically affecting the handling of Safari bookmarks. The root cause of the vulnerability is the absence of proper entitlement checks when an application attempts to access Safari bookmarks. Entitlement checks are security mechanisms that ensure only authorized apps can access sensitive system resources or user data. Due to this flaw, a malicious or compromised app can retrieve Safari bookmarks without any entitlement verification, bypassing Apple’s security model. This unauthorized access can lead to significant privacy breaches, as bookmarks often contain sensitive URLs and personal browsing information. The vulnerability affects iPadOS versions prior to 17.7.7 and macOS versions before Sequoia 15.4, Sonoma 14.7.5, and Ventura 13.7.5. Apple has remediated the issue by introducing additional entitlement checks in these updated releases, effectively preventing unauthorized bookmark access. The CVSS 3.1 base score of 9.8 reflects the vulnerability’s ease of exploitation (no privileges or user interaction required), and its severe impact on confidentiality, integrity, and availability. Although no exploits have been observed in the wild, the critical nature of the flaw warrants immediate attention. The vulnerability is classified under CWE-862 (Missing Authorization), highlighting a failure to enforce proper access controls. This issue underscores the importance of strict entitlement enforcement in mobile and desktop operating systems to protect user data from unauthorized app access.

The impact of CVE-2025-24259 is significant for organizations and individual users relying on Apple iPadOS and macOS devices. Unauthorized access to Safari bookmarks can lead to privacy violations, as bookmarks may contain sensitive or confidential URLs related to business operations, personal interests, or secure web services. Attackers could leverage this information for targeted phishing, social engineering, or reconnaissance activities. The vulnerability also undermines user trust in the security of Apple’s ecosystem. Given the high CVSS score, the flaw can be exploited remotely without any authentication or user interaction, increasing the risk of widespread compromise. For enterprises, this could result in data leakage, compliance violations, and potential exposure of intellectual property. The integrity and availability impacts, while less direct, could arise if attackers use the information gained to facilitate further attacks or disrupt user workflows. Although no known exploits are currently active, the vulnerability’s presence in widely used Apple platforms means that threat actors may develop exploits rapidly, especially targeting high-value sectors such as finance, government, healthcare, and technology.

To mitigate CVE-2025-24259, organizations and users should immediately update affected Apple devices to the patched versions: iPadOS 17.7.7, macOS Sequoia 15.4, macOS Sonoma 14.7.5, or macOS Ventura 13.7.5. Beyond patching, organizations should implement strict app vetting policies, ensuring that only trusted applications are installed on corporate devices. Employ Mobile Device Management (MDM) solutions to enforce app installation controls and monitor for unauthorized software. Regularly audit device configurations and permissions to detect any anomalies or unauthorized access attempts. Educate users about the risks of installing untrusted apps and the importance of timely updates. For high-security environments, consider restricting Safari bookmark synchronization or access through configuration profiles until patches are applied. Additionally, monitor network traffic for unusual data exfiltration patterns that could indicate exploitation attempts. Finally, maintain an incident response plan that includes steps for addressing potential data leaks stemming from this vulnerability.