CVE-2025-43412
📋 TL;DR
A sandbox escape vulnerability in macOS allows malicious applications to bypass file quarantine restrictions and potentially access system resources outside their designated sandbox. This affects macOS Sequoia, Tahoe, and Sonoma operating systems before specific security updates.
💻 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 gains full system access, installs persistent malware, steals sensitive data, or compromises the entire system.
Likely Case
Malicious app escapes sandbox to access user files, install additional payloads, or perform unauthorized actions with elevated privileges.
If Mitigated
App remains contained within sandbox with limited impact due to proper security controls and monitoring.
🎯 Exploit Status
Requires user interaction to execute malicious application; no public exploit code available at this time.
🛠️ 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. Click 'Update Now' if updates are available. 3. Follow on-screen instructions to download and install. 4. Restart when prompted.
🔧 Temporary Workarounds
Gatekeeper Enforcement
allEnsure Gatekeeper is enabled to block unsigned or malicious applications from running.
sudo spctl --master-enable
sudo spctl --status
Application Restriction
allOnly install applications from trusted sources like the Mac App Store or identified developers.
🧯 If You Can't Patch
- Implement application allowlisting to restrict which applications can run on affected systems.
- Enable enhanced monitoring for suspicious application behavior and file system access patterns.
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > About. If version is earlier than the patched versions listed, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version matches or exceeds: Sequoia 15.7.2, Tahoe 26.1, or Sonoma 14.8.2.📡 Detection & Monitoring
Log Indicators:
- Unusual application launch events
- Sandbox violation logs in Console.app
- File quarantine bypass attempts
Network Indicators:
- Unexpected outbound connections from sandboxed applications
- Downloads from untrusted sources
SIEM Query:
source="macos" AND (event_type="sandbox_violation" OR process_name="quarantine")