CVE-2025-43395
📋 TL;DR
This macOS vulnerability allows malicious applications to bypass symlink protections and access protected user data. It affects macOS systems before specific security updates. Users running vulnerable macOS versions are at risk of data exposure.
💻 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 app could access sensitive user data including keychain, passwords, documents, and other protected files.
Likely Case
Malware or compromised applications could exfiltrate user data without proper authorization.
If Mitigated
With proper app sandboxing and security controls, impact is limited to data accessible by the exploited app's permissions.
🎯 Exploit Status
Requires user to execute malicious application. No public exploit details available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Sequoia 15.7.2, macOS Tahoe 26.1, macOS Sonoma 14.8.2
Vendor Advisory: https://support.apple.com/en-us/125634
Restart Required: Yes
Instructions:
1. Open System Settings > General > Software Update. 2. Install available macOS updates. 3. Restart when prompted.
🔧 Temporary Workarounds
Restrict App Installation
macosOnly allow apps from App Store and identified developers
sudo spctl --master-enable
sudo spctl --enable --label "Mac App Store"
sudo spctl --enable --label "Developer ID"
🧯 If You Can't Patch
- Implement application allowlisting to restrict which apps can run
- Use macOS privacy controls to limit app access to sensitive data
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > About. If version is earlier than patched versions, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version matches patched versions: 15.7.2, 26.1, or 14.8.2 depending on your macOS version.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns by applications
- Console logs showing symlink-related errors
Network Indicators:
- Unusual outbound data transfers from applications
SIEM Query:
source="macos" (event="file_access" AND path="~/Library/*" OR path="/Users/*") AND process NOT IN (allowed_apps)