CVE-2025-43532
📋 TL;DR
This CVE describes a memory corruption vulnerability in Apple operating systems caused by improper bounds checking. Processing malicious data could cause affected applications to crash unexpectedly. Users of watchOS, macOS, iOS, iPadOS, visionOS, and tvOS are affected.
💻 Affected Systems
- watchOS
- macOS
- iOS
- iPadOS
- visionOS
- tvOS
📦 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
Potential for arbitrary code execution leading to full system compromise, though this is unlikely given the low CVSS score and limited description.
Likely Case
Application denial of service through unexpected termination when processing malicious data.
If Mitigated
Minimal impact with proper patching and security controls in place.
🎯 Exploit Status
Exploitation requires processing malicious data, but specific exploit details are not publicly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: watchOS 26.2, macOS Sonoma 14.8.3, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, macOS Sequoia 15.7.3, visionOS 26.2, tvOS 26.2
Vendor Advisory: https://support.apple.com/en-us/125884
Restart Required: Yes
Instructions:
1. Open Settings app. 2. Navigate to General > Software Update. 3. Download and install the latest available update. 4. Restart the device when prompted.
🧯 If You Can't Patch
- Restrict processing of untrusted data sources.
- Implement application sandboxing and memory protection controls.
🔍 How to Verify
Check if Vulnerable:
Check current OS version against affected versions list.Check Version:
On macOS: sw_vers -productVersion. On iOS/iPadOS: Settings > General > About > Version.Verify Fix Applied:
Verify OS version matches or exceeds patched versions listed in fix_official.patch_version.📡 Detection & Monitoring
Log Indicators:
- Application crash logs with memory access violations
- Unexpected process termination events
Network Indicators:
- Unusual data processing patterns from untrusted sources
SIEM Query:
source="apple_system_logs" AND (event="process_crash" OR event="memory_violation")🔗 References
- https://support.apple.com/en-us/125884
- https://support.apple.com/en-us/125885
- https://support.apple.com/en-us/125886
- https://support.apple.com/en-us/125887
- https://support.apple.com/en-us/125888
- https://support.apple.com/en-us/125889
- https://support.apple.com/en-us/125890
- https://support.apple.com/en-us/125891
