CVE-2025-24247

9.8 CRITICAL

📋 TL;DR

A type confusion vulnerability in macOS allows attackers to cause unexpected application termination (denial of service). This affects macOS Ventura, Sequoia, and Sonoma systems running vulnerable versions. The high CVSS score indicates potential for more severe impacts beyond just app crashes.

💻 Affected Systems

Products:
  • macOS
Versions: Versions before Ventura 13.7.5, Sequoia 15.4, and Sonoma 14.7.5
Operating Systems: macOS Ventura, macOS Sequoia, macOS Sonoma
Default Config Vulnerable: ⚠️ Yes
Notes: All standard configurations of affected macOS versions are vulnerable. No special configurations required for exploitation.

📦 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 and denial of service affecting system stability and availability.

🟢

If Mitigated

Limited to isolated application crashes with minimal business impact if proper segmentation exists.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

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

Type confusion vulnerabilities often lead to memory corruption, which can be leveraged for code execution. The high CVSS score suggests exploitation is feasible.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Ventura 13.7.5, macOS Sequoia 15.4, macOS Sonoma 14.7.5

Vendor Advisory: https://support.apple.com/en-us/122373

Restart Required: Yes

Instructions:

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

🧯 If You Can't Patch

  • Isolate affected systems from untrusted networks
  • Implement application allowlisting to restrict unknown applications

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About. If version is below Ventura 13.7.5, Sequoia 15.4, or Sonoma 14.7.5, system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version matches or exceeds patched versions: Ventura 13.7.5, Sequoia 15.4, or Sonoma 14.7.5.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected application crashes in system logs
  • Kernel panic reports
  • Memory access violation errors

Network Indicators:

  • Unusual outbound connections following application crashes
  • Suspicious process spawning

SIEM Query:

source="macos_system_logs" AND ("panic" OR "crash" OR "segmentation fault")

🔗 References

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