CVE-2025-43499

5.5 MEDIUM

📋 TL;DR

This vulnerability allows malicious apps to bypass entitlement checks and access sensitive user data on Apple devices. It affects iOS, iPadOS, and macOS systems running vulnerable versions. The issue was addressed through additional entitlement validation in Apple's security updates.

💻 Affected Systems

Products:
  • iOS
  • iPadOS
  • macOS
Versions: Versions prior to iOS 18.7.2, iPadOS 18.7.2, macOS Sequoia 15.7.2, macOS Tahoe 26.1, macOS Sonoma 14.8.2
Operating Systems: iOS, iPadOS, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All devices running affected versions are vulnerable by default. The vulnerability is in the entitlement checking mechanism.

📦 What is this software?

Macos by Apple

macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...

Learn more about Macos →

Macos by Apple

macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...

Learn more about Macos →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Malicious app could access sensitive user data including personal information, credentials, or private files without user consent.

🟠

Likely Case

Malicious apps in the App Store or sideloaded apps could access restricted data they shouldn't have permission to access.

🟢

If Mitigated

With proper app sandboxing and security controls, unauthorized data access would be prevented or limited.

🌐 Internet-Facing: LOW - This is primarily a local app vulnerability, not directly exploitable over the internet.
🏢 Internal Only: MEDIUM - Malicious apps could exploit this locally on devices, but requires app installation.

🎯 Exploit Status

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

Exploitation requires a malicious app to be installed on the target device. No public exploit details are available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: iOS 18.7.2, iPadOS 18.7.2, macOS Sequoia 15.7.2, macOS Tahoe 26.1, macOS Sonoma 14.8.2

Vendor Advisory: https://support.apple.com/en-us/125633

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 install apps from trusted sources and the official App Store

Review App Permissions

all

Regularly review and restrict app permissions in device settings

🧯 If You Can't Patch

  • Implement mobile device management (MDM) to control app installation
  • Use app whitelisting to only allow approved applications

🔍 How to Verify

Check if Vulnerable:

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

Check Version:

On macOS: sw_vers -productVersion. On iOS/iPadOS: Check in Settings > General > About

Verify Fix Applied:

Verify version is equal to or newer than iOS 18.7.2, iPadOS 18.7.2, macOS Sequoia 15.7.2, macOS Tahoe 26.1, or macOS Sonoma 14.8.2

📡 Detection & Monitoring

Log Indicators:

  • Unusual app behavior accessing protected resources
  • Entitlement violation logs in system logs

Network Indicators:

  • Unusual data exfiltration from apps

SIEM Query:

Search for entitlement violation events or unauthorized resource access in Apple device logs

🔗 References

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