CVE-2025-31236

5.5 MEDIUM

📋 TL;DR

This CVE describes an information disclosure vulnerability in macOS where applications could access sensitive user data without proper authorization. It affects macOS systems before version 15.5 (Sequoia). The vulnerability allows unauthorized data access but requires local application execution.

💻 Affected Systems

Products:
  • macOS
Versions: Versions before macOS Sequoia 15.5
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All default configurations of affected macOS versions are vulnerable. The vulnerability is in the operating system's privacy controls.

📦 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...

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⚠️ Risk & Real-World Impact

🔴

Worst Case

Malicious applications could access sensitive user data including personal files, credentials, or other protected information stored on the system.

🟠

Likely Case

Legitimate but poorly secured applications could inadvertently access data they shouldn't, or malicious apps from untrusted sources could harvest user data.

🟢

If Mitigated

With proper application sandboxing and user permission controls, the impact is limited to data accessible within the app's designated sandbox.

🌐 Internet-Facing: LOW - This vulnerability requires local application execution and cannot be directly exploited over the internet.
🏢 Internal Only: MEDIUM - Malicious or compromised applications running locally could exploit this to access sensitive data on the affected system.

🎯 Exploit Status

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

Exploitation requires a malicious application to be installed and executed on the target system. No public exploit code has been identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sequoia 15.5

Vendor Advisory: https://support.apple.com/en-us/122716

Restart Required: Yes

Instructions:

1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Sequoia 15.5 update 5. Restart when prompted

🔧 Temporary Workarounds

Restrict Application Permissions

all

Review and restrict application permissions in System Settings to limit data access

Use Application Sandboxing

all

Ensure applications run with appropriate sandboxing restrictions

🧯 If You Can't Patch

  • Implement strict application control policies to only allow trusted applications
  • Use endpoint detection and response (EDR) solutions to monitor for suspicious application behavior

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About. If version is earlier than 15.5, the system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is 15.5 or later in System Settings > General > About

📡 Detection & Monitoring

Log Indicators:

  • Unusual application access patterns to protected data directories
  • Privacy permission denials in system logs

Network Indicators:

  • Not applicable - local vulnerability only

SIEM Query:

source="macos_system_logs" AND (event="privacy_violation" OR event="unauthorized_data_access")

🔗 References

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