CVE-2025-43507 is a privacy vulnerability discovered in Apple visionOS and other Apple operating systems including watchOS, iOS, and iPadOS. The flaw allows a malicious app to fingerprint users by accessing sensitive data that can uniquely identify or track them across applications or sessions. Fingerprinting is a technique that collects device or user-specific information to create a unique profile, which can be used for tracking or profiling without user consent. Apple addressed this issue by relocating or restricting access to the sensitive data in the updated OS versions (26.1). The vulnerability does not appear to allow direct code execution or system compromise but poses a significant privacy risk by enabling persistent user tracking. No CVSS score has been assigned yet, and no known exploits have been reported in the wild. The vulnerability affects all versions prior to 26.1, though exact affected versions are unspecified. The issue highlights the challenges in protecting user privacy in emerging AR/VR platforms like visionOS, where new types of sensor and device data can be exploited for fingerprinting. Organizations deploying visionOS devices should prioritize patching to prevent privacy violations and potential regulatory non-compliance.

For European organizations, the primary impact of CVE-2025-43507 is on user privacy and data protection compliance. The ability for apps to fingerprint users can lead to unauthorized tracking and profiling, potentially violating GDPR and other privacy regulations. This can result in reputational damage, regulatory fines, and loss of user trust. While the vulnerability does not directly compromise system integrity or availability, the privacy breach can affect sensitive user data and undermine confidentiality. Organizations using visionOS devices in sectors such as healthcare, finance, or government may face heightened risks due to the sensitivity of the data involved. Additionally, enterprises leveraging visionOS for AR/VR applications could see increased scrutiny over their data handling practices. The lack of known exploits reduces immediate operational risk, but the ease of exploitation by any installed app makes timely patching critical to mitigate privacy risks.

To mitigate CVE-2025-43507, European organizations should: 1) Immediately update all Apple devices running visionOS, watchOS, iOS, or iPadOS to version 26.1 or later, where the vulnerability is fixed. 2) Enforce strict app vetting and permissions policies to limit installation of untrusted or unnecessary apps that could exploit fingerprinting. 3) Monitor device usage and app behavior for unusual data access patterns indicative of fingerprinting attempts. 4) Educate users about the importance of applying OS updates promptly and the privacy risks of installing unverified apps. 5) For enterprise deployments, consider Mobile Device Management (MDM) solutions to enforce update compliance and restrict app installations. 6) Review privacy policies and data protection impact assessments to ensure they address risks related to device fingerprinting and AR/VR platforms. 7) Engage with Apple’s security advisories and update processes to stay informed of any further developments or patches.