CVE-2025-43222

9.8 CRITICAL

📋 TL;DR

A use-after-free vulnerability (CWE-416) in Apple operating systems allows attackers to cause unexpected application termination. This affects macOS and iPadOS users running vulnerable versions. Successful exploitation could lead to denial of service or potentially arbitrary code execution.

💻 Affected Systems

Products:
  • macOS
  • iPadOS
Versions: Versions prior to macOS Sequoia 15.6, iPadOS 17.7.9, macOS Ventura 13.7.7, macOS Sonoma 14.7.7
Operating Systems: macOS, iPadOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default configurations of affected versions are vulnerable

📦 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 →

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

Remote code execution leading to full system compromise, data theft, or ransomware deployment

🟠

Likely Case

Application crashes causing denial of service and potential data loss

🟢

If Mitigated

Limited impact with proper patch management and application sandboxing

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Use-after-free vulnerabilities typically require specific memory manipulation techniques

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sequoia 15.6, iPadOS 17.7.9, macOS Ventura 13.7.7, macOS Sonoma 14.7.7

Vendor Advisory: https://support.apple.com/en-us/124148

Restart Required: Yes

Instructions:

1. Open System Settings
2. Click General
3. Click Software Update
4. Install available updates
5. Restart when prompted

🔧 Temporary Workarounds

Application Sandboxing

macos

Ensure applications run with minimal privileges using macOS sandboxing

Network Segmentation

all

Isolate vulnerable systems from untrusted networks

🧯 If You Can't Patch

  • Implement strict network access controls to limit exposure
  • Deploy endpoint detection and response (EDR) solutions to monitor for exploitation attempts

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About or run 'sw_vers' in terminal

Check Version:

sw_vers

Verify Fix Applied:

Verify installed version matches or exceeds patched versions listed in advisory

📡 Detection & Monitoring

Log Indicators:

  • Unexpected application crashes
  • Memory access violation logs
  • Kernel panic reports

Network Indicators:

  • Unusual outbound connections following application crashes

SIEM Query:

source="macos_system_logs" AND (event="crash" OR event="panic") AND process="*"

🔗 References

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