CVE-2025-43381
📋 TL;DR
This CVE describes a macOS vulnerability where improper symlink handling allows malicious applications to delete protected user data. It affects macOS systems before version 26.1 (Tahoe). Users who install untrusted applications are at risk.
💻 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 →⚠️ Risk & Real-World Impact
Worst Case
Malicious application gains unauthorized deletion access to protected user files, potentially including sensitive documents, configuration files, or system data.
Likely Case
Malicious app distributed through unofficial channels deletes user documents or application data without proper authorization.
If Mitigated
Limited impact with proper application vetting and user permissions in place.
🎯 Exploit Status
Exploitation requires user interaction to install malicious application. No known public exploits at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Tahoe 26.1
Vendor Advisory: https://support.apple.com/en-us/125634
Restart Required: Yes
Instructions:
1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Tahoe 26.1 update 5. Restart when prompted
🔧 Temporary Workarounds
Restrict Application Installation
allOnly install applications from trusted sources like the Mac App Store or identified developers
Enable Gatekeeper
allEnsure Gatekeeper is enabled to block apps from unidentified developers
sudo spctl --master-enable
🧯 If You Can't Patch
- Only install applications from the Mac App Store or trusted developers
- Implement application allowlisting to prevent unauthorized app execution
🔍 How to Verify
Check if Vulnerable:
Check macOS version: if earlier than 26.1 and running macOS Tahoe, system is vulnerableCheck Version:
sw_versVerify Fix Applied:
Verify macOS version is 26.1 or later via System Settings > General > About📡 Detection & Monitoring
Log Indicators:
- Unexpected file deletion events in system logs
- Application installation from untrusted sources
Network Indicators:
- Downloads of suspicious applications from untrusted sources
SIEM Query:
source="macos_system_logs" event_type="file_deletion" AND process_path NOT IN (trusted_applications)