CVE-2025-46290
📋 TL;DR
A logic vulnerability in macOS allows remote attackers to cause denial-of-service conditions. This affects macOS Sequoia before 15.7.4 and macOS Sonoma before 14.8.4. The issue involves insufficient validation checks that could be exploited to disrupt system services.
💻 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 →⚠️ Risk & Real-World Impact
Worst Case
Critical system services become unavailable, requiring system reboot and potentially causing data loss or service disruption.
Likely Case
Temporary service interruption affecting specific applications or network services until system recovery.
If Mitigated
Minimal impact with proper network segmentation and monitoring in place.
🎯 Exploit Status
Exploitation requires specific conditions and knowledge of the logic flaw.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Sequoia 15.7.4, macOS Sonoma 14.8.4
Vendor Advisory: https://support.apple.com/en-us/126349
Restart Required: No
Instructions:
1. Open System Settings 2. Click General 3. Click Software Update 4. Install available updates 5. Follow on-screen instructions
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to affected systems to reduce attack surface
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure
- Monitor system logs for unusual activity patterns
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > AboutCheck Version:
sw_versVerify Fix Applied:
Verify macOS version is 15.7.4 or higher for Sequoia, or 14.8.4 or higher for Sonoma📡 Detection & Monitoring
Log Indicators:
- Unexpected service terminations
- Resource exhaustion warnings
- Connection flood patterns
Network Indicators:
- Unusual traffic patterns to macOS services
- Connection attempts to vulnerable ports
SIEM Query:
source="macos" AND (event_type="service_crash" OR event_type="resource_exhaustion")