CVE-2025-43384
📋 TL;DR
This CVE describes an out-of-bounds memory access vulnerability in Apple's media file processing. Attackers can craft malicious media files that cause affected Apple devices to crash or corrupt memory when processed. Users of unpatched Apple devices are affected.
💻 Affected Systems
- tvOS
- macOS
- iOS
- iPadOS
- visionOS
📦 What is this software?
Ipados by Apple
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 →Tvos by Apple
⚠️ Risk & Real-World Impact
Worst Case
Memory corruption could potentially lead to arbitrary code execution, though this is not confirmed in the CVE description.
Likely Case
Application termination (crash) or memory corruption when processing malicious media files.
If Mitigated
No impact if devices are patched to the fixed versions.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious media file. No public exploit code is mentioned.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: tvOS 26.1, macOS Tahoe 26.1, iOS 26.1, iPadOS 26.1, iOS 18.7.2, iPadOS 18.7.2, macOS Sequoia 15.7.2, visionOS 26.1
Vendor Advisory: https://support.apple.com/en-us/125632
Restart Required: Yes
Instructions:
1. Open Settings app. 2. Go to General > Software Update. 3. Download and install the latest available update. 4. Restart device when prompted.
🔧 Temporary Workarounds
Disable automatic media preview
allPrevent automatic processing of media files in vulnerable applications.
Use trusted media sources only
allOnly open media files from trusted sources and avoid unknown files.
🧯 If You Can't Patch
- Restrict media file processing to trusted applications only
- Implement application sandboxing to limit potential damage
🔍 How to Verify
Check if Vulnerable:
Check current OS version against affected versions list.Check Version:
Settings > General > About > Version (iOS/iPadOS) or About This Mac > macOS VersionVerify Fix Applied:
Verify OS version matches or exceeds the patched versions listed.📡 Detection & Monitoring
Log Indicators:
- Application crash logs related to media processing
- Memory access violation errors in system logs
Network Indicators:
- Unusual media file downloads from untrusted sources
SIEM Query:
Search for process crashes with media-related executables or memory access violations.