CVE-2025-43500

7.5 HIGH

📋 TL;DR

This CVE describes a privacy vulnerability in Apple operating systems where applications could bypass user preference controls to access sensitive user data. The issue affects iOS, iPadOS, watchOS, macOS, and visionOS users who haven't updated to the latest versions. Attackers could potentially exploit this to access private information without user consent.

💻 Affected Systems

Products:
  • iOS
  • iPadOS
  • watchOS
  • macOS
  • visionOS
Versions: Versions prior to iOS 26.1, iPadOS 26.1, watchOS 26.1, macOS Tahoe 26.1, visionOS 26.1
Operating Systems: iOS, iPadOS, watchOS, macOS, visionOS
Default Config Vulnerable: ⚠️ Yes
Notes: All devices running affected versions are vulnerable by default. The vulnerability requires app installation/execution to exploit.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Malicious apps could access sensitive personal data including location, contacts, photos, messages, health information, and other protected user data without authorization.

🟠

Likely Case

Apps with legitimate functionality but poor security practices could inadvertently access more data than intended, potentially exposing user information through subsequent vulnerabilities.

🟢

If Mitigated

With proper app sandboxing and security controls, the impact would be limited to data accessible within the app's normal permissions scope.

🌐 Internet-Facing: LOW - This vulnerability requires local app execution and doesn't directly expose services to internet-based attacks.
🏢 Internal Only: MEDIUM - The risk exists primarily for devices with untrusted or malicious apps installed, which could occur in enterprise environments through sideloaded apps or compromised app stores.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires a malicious or compromised app to be installed on the target device. The app must be able to execute code and bypass user preference controls.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: iOS 26.1, iPadOS 26.1, watchOS 26.1, macOS Tahoe 26.1, visionOS 26.1

Vendor Advisory: https://support.apple.com/en-us/125632

Restart Required: Yes

Instructions:

1. Open Settings app. 2. Go to General > Software Update. 3. Download and install the available update. 4. Restart device when prompted.

🔧 Temporary Workarounds

Restrict App Installation

all

Only allow installation of apps from trusted sources like the official App Store

Settings > General > Device Management (for enterprise) or Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases

Review App Permissions

all

Regularly audit and restrict app permissions to minimum necessary

Settings > Privacy & Security > Review each permission category

🧯 If You Can't Patch

  • Implement mobile device management (MDM) to control app installation and enforce security policies
  • Use application allowlisting to only permit trusted, vetted applications to run on devices

🔍 How to Verify

Check if Vulnerable:

Check device version in Settings > General > About > Software Version

Check Version:

Settings > General > About > Software Version (iOS/iPadOS/watchOS/visionOS) or Apple menu > About This Mac (macOS)

Verify Fix Applied:

Verify version is iOS/iPadOS 26.1 or later, watchOS 26.1 or later, macOS Tahoe 26.1 or later, or visionOS 26.1 or later

📡 Detection & Monitoring

Log Indicators:

  • Unusual app permission requests
  • Apps accessing data categories they shouldn't need
  • Privacy permission violation logs

Network Indicators:

  • Unusual data exfiltration from apps to external servers
  • Apps communicating with unexpected domains

SIEM Query:

source="apple_device_logs" AND (event_category="privacy_violation" OR permission_request="unusual")

🔗 References

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