CVE-2025-43500: Apple iPadOS Information Disclosure Flaw

CVE-2025-43500 Overview

CVE-2025-43500 is a privacy vulnerability affecting multiple Apple operating systems where improper handling of user preferences allows malicious applications to access sensitive user data. This vulnerability, classified as CWE-359 (Exposure of Private Personal Information to an Unauthorized Actor), stems from how the affected systems manage and enforce user privacy settings.

The flaw enables installed applications to bypass privacy controls and retrieve data that should be protected by user preferences. Apple has addressed this issue with improved handling of user preferences in subsequent security updates across iOS, iPadOS, macOS, visionOS, and watchOS platforms.

Critical Impact

A malicious application installed on an affected device can access sensitive user data by bypassing privacy preference controls, potentially exposing personal information without user consent.

Affected Products

• Apple iOS (iPhone OS) versions prior to 26.1
• Apple iPadOS versions prior to 26.1
• Apple macOS Tahoe versions prior to 26.1
• Apple visionOS versions prior to 26.1
• Apple watchOS versions prior to 26.1

Discovery Timeline

• November 4, 2025 - CVE-2025-43500 published to NVD
• April 2, 2026 - Last updated in NVD database

Technical Details for CVE-2025-43500

Vulnerability Analysis

This vulnerability falls under the category of Sensitive Data Exposure, where the privacy enforcement mechanism fails to properly honor user-defined preferences. The root issue lies in how the operating system components handle and validate application requests for user data against the configured privacy settings.

When an application requests access to protected user information, the system should verify that the user has explicitly granted permission for that specific data category. In vulnerable versions, this verification process contains a flaw that allows applications to circumvent these checks and access data without proper authorization.

The network-based attack vector indicates that the vulnerability can potentially be triggered through network-delivered content or remotely-deployed malicious applications. The exploitation requires no user interaction beyond having a malicious application installed, and no special privileges are needed for the attacker to leverage this flaw.

Root Cause

The vulnerability originates from improper handling of user preferences within the privacy subsystem of affected Apple operating systems. The system fails to correctly enforce user-defined privacy boundaries when applications request access to sensitive data. This represents a logic flaw in the preference management code rather than a memory corruption issue.

The privacy preference framework should act as a gatekeeper, ensuring that only authorized applications can access protected data categories. However, the flawed implementation allows these protections to be bypassed, enabling unauthorized data access.

Attack Vector

The attack scenario involves a malicious application that exploits the improper preference handling to access sensitive user data. The attack flow typically follows these steps:

1. A malicious application is installed on the target device through the App Store or enterprise distribution
2. The application attempts to access protected user data categories
3. Due to the preference handling flaw, the system fails to properly enforce privacy restrictions
4. The application successfully retrieves sensitive user information without proper authorization
5. The exfiltrated data can then be transmitted to attacker-controlled servers

The attack does not require any special conditions or user interaction beyond application installation. The vulnerability affects the confidentiality of user data while integrity and availability remain unaffected.

Detection Methods for CVE-2025-43500

Indicators of Compromise

• Unexpected application access to sensitive data categories such as contacts, location, photos, or health data
• Applications making data requests outside their declared functionality scope
• Unusual data exfiltration patterns from devices running vulnerable OS versions
• Privacy-protected API calls from applications that should not have such permissions

Detection Strategies

• Monitor privacy access logs for applications accessing data without corresponding user-granted permissions
• Implement Mobile Device Management (MDM) solutions to track application behavior and data access patterns
• Deploy endpoint detection tools capable of identifying abnormal application data access on Apple devices
• Review application permissions and compare against actual data access behavior

Monitoring Recommendations

• Enable detailed logging for privacy-sensitive data access on managed devices
• Implement alerting for applications accessing multiple sensitive data categories in rapid succession
• Monitor for applications communicating with unknown or suspicious external servers after accessing protected data
• Regularly audit installed applications against approved software lists

How to Mitigate CVE-2025-43500

Immediate Actions Required

• Update all affected Apple devices to the patched versions: iOS 26.1, iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, and watchOS 26.1
• Review installed applications and remove any that are unnecessary or from untrusted sources
• Enable automatic updates on all Apple devices to receive security patches promptly
• Implement application allowlisting policies through MDM for enterprise environments

Patch Information

Apple has released security updates that address this vulnerability by improving the handling of user preferences. The fixed versions are:

• iOS 26.1 and iPadOS 26.1 - Apple Security Advisory 125632
• macOS Tahoe 26.1 - Apple Security Advisory 125634
• visionOS 26.1 - Apple Security Advisory 125638
• watchOS 26.1 - Apple Security Advisory 125639

Organizations should prioritize deploying these updates across all managed Apple devices as soon as possible.

Workarounds

• Restrict application installations to only trusted sources and vetted applications until patches can be applied
• Implement strict MDM policies limiting which applications can be installed on corporate devices
• Review and minimize privacy permissions granted to existing applications
• Consider network-level controls to limit data exfiltration opportunities from potentially compromised devices
• For high-security environments, isolate sensitive data workflows to patched devices only