CVE-2025-24135

7.8 HIGH

📋 TL;DR

A privilege escalation vulnerability in macOS allows malicious applications to gain elevated system privileges. This affects macOS systems before Sequoia 15.3. Attackers could potentially execute arbitrary code with higher permissions than intended.

💻 Affected Systems

Products:
  • macOS
Versions: All versions before macOS Sequoia 15.3
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: Requires local access or ability to run malicious application on 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...

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⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise where an attacker gains root privileges, installs persistent malware, accesses sensitive data, and controls the entire system.

🟠

Likely Case

Local attacker gains elevated privileges to bypass security controls, install additional malicious software, or access protected system resources.

🟢

If Mitigated

Limited impact with proper application sandboxing, least privilege principles, and security monitoring in place.

🌐 Internet-Facing: LOW
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires user interaction to run malicious application or social engineering.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sequoia 15.3

Vendor Advisory: https://support.apple.com/en-us/122068

Restart Required: No

Instructions:

1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Sequoia 15.3 or later

🔧 Temporary Workarounds

Application Restriction

all

Restrict installation and execution of untrusted applications

🧯 If You Can't Patch

  • Implement strict application allowlisting policies
  • Enforce least privilege principles for user accounts

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is 15.3 or later

📡 Detection & Monitoring

Log Indicators:

  • Unexpected privilege escalation events in system logs
  • Unauthorized process execution with elevated privileges

Network Indicators:

  • None - local exploitation only

SIEM Query:

process where parent_process_name contains 'launchd' and process_name not in allowed_apps_list

🔗 References

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