CVE-2025-43231

5.5 MEDIUM

📋 TL;DR

This CVE describes a logic flaw in macOS that allows applications to access sensitive user data they shouldn't have permission to access. The vulnerability affects macOS systems before Sonoma 14.8, potentially exposing personal information, credentials, or other protected data to malicious or compromised applications.

💻 Affected Systems

Products:
  • macOS
Versions: Versions before macOS Sonoma 14.8
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default macOS installations before Sonoma 14.8 are vulnerable. The vulnerability requires an application to be installed and executed on the target system.

📦 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 application could exfiltrate sensitive user data including passwords, authentication tokens, personal documents, or other protected information without user consent or detection.

🟠

Likely Case

Malware or compromised legitimate applications could access and steal user data stored in protected areas of the filesystem or memory, leading to data breaches or credential theft.

🟢

If Mitigated

With proper application sandboxing and security controls, only limited data exposure might occur, though the fundamental permission bypass remains a concern.

🌐 Internet-Facing: LOW
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires a malicious or compromised application to be installed and executed on the target system. No public exploit code is currently available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sonoma 14.8

Vendor Advisory: https://support.apple.com/en-us/125112

Restart Required: No

Instructions:

1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Sonoma 14.8 or later 5. Follow on-screen instructions to complete the update

🔧 Temporary Workarounds

Application Sandboxing Enforcement

macOS

Ensure all applications run with appropriate sandboxing restrictions and only install applications from trusted sources

🧯 If You Can't Patch

  • Restrict application installation to only trusted, verified sources from the App Store or known developers
  • Implement application allowlisting to prevent unauthorized applications from executing

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About. If version is earlier than 14.8, the system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is 14.8 or later in System Settings > General > About.

📡 Detection & Monitoring

Log Indicators:

  • Unusual application access patterns to protected directories
  • Applications accessing files outside their expected sandbox boundaries

Network Indicators:

  • Unexpected outbound data transfers from applications that shouldn't be transmitting data

SIEM Query:

source="macos" AND (event_type="file_access" AND file_path CONTAINS "/Users/" AND process_name NOT IN allowed_apps)

🔗 References

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