CVE-2025-43466
📋 TL;DR
This CVE describes an injection vulnerability in macOS that allows malicious applications to access sensitive user data. The issue affects macOS systems before version 26.1 and was addressed through improved input validation.
💻 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
A malicious app could access sensitive user data including personal information, credentials, or private files without user consent.
Likely Case
Malicious applications distributed through unofficial channels could exploit this to harvest user data.
If Mitigated
With proper app vetting and security controls, exploitation risk is significantly reduced.
🎯 Exploit Status
Requires user to install and run a malicious application
🛠️ 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 App Installation Sources
macosOnly allow app installations from the App Store and identified developers
🧯 If You Can't Patch
- Implement application allowlisting to restrict which applications can run
- Use endpoint detection and response (EDR) tools to monitor for suspicious application behavior
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > AboutCheck Version:
sw_versVerify Fix Applied:
Verify macOS version is 26.1 or later📡 Detection & Monitoring
Log Indicators:
- Unusual application access to protected data stores
- Applications requesting excessive permissions
Network Indicators:
- Unusual outbound data transfers from applications
SIEM Query:
source="macos" event_type="app_permission" action="access" resource_type="sensitive_data"