CVE-2025-24256
📋 TL;DR
This is a macOS kernel memory disclosure vulnerability caused by insufficient bounds checking. An application could potentially read sensitive kernel memory contents, exposing system information or credentials. Affects macOS Ventura, Sequoia, and Sonoma before specific patch versions.
💻 Affected Systems
- macOS
📦 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
An attacker could read kernel memory containing sensitive data like encryption keys, passwords, or other system secrets, potentially leading to full system compromise.
Likely Case
Malicious applications could extract kernel memory contents to bypass security mechanisms or gather system information for further attacks.
If Mitigated
With proper application sandboxing and least privilege principles, impact would be limited to memory disclosure within the app's context.
🎯 Exploit Status
Exploitation requires a malicious application to be executed on the target system. No public exploit code is currently available.
🛠️ 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
🔧 Temporary Workarounds
Application Sandboxing
allEnforce strict application sandboxing policies to limit what applications can access
Restrict Application Installation
allOnly allow installation of applications from trusted sources like App Store
🧯 If You Can't Patch
- Implement strict application control policies to prevent untrusted applications from running
- Use endpoint detection and response (EDR) solutions to monitor for suspicious memory access patterns
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > About. If version is Ventura <13.7.5, Sequoia <15.4, or Sonoma <14.7.5, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version is Ventura 13.7.5, Sequoia 15.4, or Sonoma 14.7.5 or later in System Settings > General > About.📡 Detection & Monitoring
Log Indicators:
- Unusual kernel memory access patterns in system logs
- Suspicious application behavior logs
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
Not applicable - no network exploitation vector