CVE-2025-43397
📋 TL;DR
A permissions issue in macOS allows applications to cause denial-of-service conditions. This affects macOS Sequoia, Tahoe, and Sonoma systems before specific patch versions. The vulnerability enables apps to disrupt system functionality through improper permission handling.
💻 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
Malicious app could cause system instability, application crashes, or temporary unavailability of critical services on affected macOS systems.
Likely Case
Poorly coded or malicious applications could trigger denial-of-service conditions, disrupting user workflows and requiring system restarts.
If Mitigated
With proper app vetting and security controls, impact is limited to isolated application issues rather than system-wide disruption.
🎯 Exploit Status
Requires application execution on target system. No public exploit details available from Apple's advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Sequoia 15.7.2, macOS Tahoe 26.1, macOS Sonoma 14.8.2
Vendor Advisory: https://support.apple.com/en-us/125634
Restart Required: Yes
Instructions:
1. Open System Settings > General > Software Update. 2. Install available macOS updates. 3. Restart system when prompted.
🔧 Temporary Workarounds
Application Restriction
allRestrict installation and execution of untrusted applications using macOS security policies
🧯 If You Can't Patch
- Implement application allowlisting to restrict which applications can run on affected systems
- Use macOS privacy controls to limit application permissions and sandbox untrusted applications
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > About. If version is earlier than patched versions listed, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version shows 15.7.2 or later for Sequoia, 26.1 or later for Tahoe, or 14.8.2 or later for Sonoma.📡 Detection & Monitoring
Log Indicators:
- Application crash logs, system instability reports, unexpected process termination
Network Indicators:
- None - local vulnerability only
SIEM Query:
Search for application crash events or unexpected process termination in macOS system logs