CVE-2025-43519
📋 TL;DR
A permissions vulnerability in macOS allows applications to bypass intended restrictions and access sensitive user data. This affects users running macOS versions before the patched releases. The issue stems from insufficient access controls that apps could potentially exploit.
💻 Affected Systems
- macOS
📦 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 applications could access sensitive user data including personal files, credentials, or other protected information without user consent.
Likely Case
Legitimate but poorly secured applications might inadvertently access data they shouldn't, or malicious apps from untrusted sources could harvest user information.
If Mitigated
With proper app vetting and security controls, the risk is limited to potential data exposure from already-installed malicious applications.
🎯 Exploit Status
Exploitation requires a malicious or compromised application to be installed and executed on the target system. No public exploit code has been disclosed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Tahoe 26.2, macOS Sequoia 15.7.3, macOS Sonoma 14.8.3
Vendor Advisory: https://support.apple.com/en-us/125886
Restart Required: Yes
Instructions:
1. Open System Settings 2. Click General 3. Click Software Update 4. Install available updates 5. Restart when prompted
🔧 Temporary Workarounds
Restrict App Installation Sources
macosOnly allow app installations from the App Store and identified developers to reduce risk of malicious apps
System Settings > Privacy & Security > Allow apps downloaded from: App Store
Review App Permissions
macosRegularly audit and restrict application permissions in System Settings
System Settings > Privacy & Security > Review permissions for each app category
🧯 If You Can't Patch
- Only install applications from trusted sources and the official App Store
- Implement application allowlisting to control which apps can run on the system
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > About. If version is earlier than the patched versions listed, the system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version matches or exceeds: Tahoe 26.2, Sequoia 15.7.3, or Sonoma 14.8.3📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns by applications
- Applications requesting unexpected permissions
Network Indicators:
- Unusual outbound data transfers from applications
SIEM Query:
source="macos" event_type="file_access" app NOT IN (trusted_app_list)