CVE-2025-43467
📋 TL;DR
This vulnerability in macOS allows malicious applications to escalate privileges and gain root access. It affects macOS systems running versions before Tahoe 26.1. 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
Complete system compromise with root-level persistence, data theft, and installation of additional malware.
Likely Case
Local privilege escalation allowing malicious apps to bypass security controls and access protected system resources.
If Mitigated
Limited impact if only trusted applications are installed and proper application controls are enforced.
🎯 Exploit Status
Exploitation requires user interaction to install/run a malicious application. No public exploit code is currently available.
🛠️ 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 allow installation of applications from the App Store and identified developers
sudo spctl --master-enable
sudo spctl --enable
Implement Application Control
allUse MDM or endpoint protection to restrict which applications can run
🧯 If You Can't Patch
- Implement strict application allowlisting to prevent untrusted applications from running
- Restrict user privileges and implement least privilege access controls
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > About. If version is earlier than Tahoe 26.1, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version shows Tahoe 26.1 or later in System Settings > General > About.📡 Detection & Monitoring
Log Indicators:
- Unexpected privilege escalation events in system logs
- Applications requesting root privileges unexpectedly
Network Indicators:
- Unusual outbound connections from system processes
SIEM Query:
source="macos_system_logs" AND (event="privilege_escalation" OR process="sudo" OR user="root")