CVE-2025-43361
📋 TL;DR
This CVE-2025-43361 is an out-of-bounds read vulnerability in Apple operating systems that allows malicious applications to read kernel memory. It affects multiple Apple platforms including iOS, iPadOS, macOS, tvOS, watchOS, and visionOS. Successful exploitation could lead to kernel memory disclosure and potential privilege escalation.
💻 Affected Systems
- iOS
- iPadOS
- macOS
- tvOS
- watchOS
- 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 →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
Watchos by Apple
⚠️ Risk & Real-World Impact
Worst Case
An attacker could read sensitive kernel memory, potentially obtaining cryptographic keys, authentication tokens, or other privileged information, leading to full system compromise.
Likely Case
Malicious applications could read kernel memory to bypass security mechanisms, escalate privileges, or extract sensitive system information.
If Mitigated
With proper application sandboxing and security controls, the impact is limited to the compromised application's context.
🎯 Exploit Status
Exploitation requires a malicious application to be installed and executed on the target device. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: tvOS 26, watchOS 26, iOS 26, iPadOS 26, macOS Sonoma 14.8.2, macOS Sequoia 15.7.2, visionOS 26
Vendor Advisory: https://support.apple.com/en-us/125108
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.
🔧 Temporary Workarounds
Application Restriction
allRestrict installation of applications from untrusted sources to prevent malicious apps from exploiting this vulnerability.
🧯 If You Can't Patch
- Implement strict application allowlisting to prevent unauthorized applications from executing.
- Deploy endpoint detection and response (EDR) solutions to monitor for suspicious application behavior.
🔍 How to Verify
Check if Vulnerable:
Check the operating system version against the affected versions listed in the Apple security advisory.Check Version:
iOS/iPadOS: Settings > General > About > Version; macOS: Apple menu > About This Mac > macOS version; tvOS: Settings > General > About > Version; watchOS: Watch app on iPhone > General > About > VersionVerify Fix Applied:
Verify the device is running tvOS 26, watchOS 26, iOS 26, iPadOS 26, macOS Sonoma 14.8.2, macOS Sequoia 15.7.2, or visionOS 26 or later.📡 Detection & Monitoring
Log Indicators:
- Unusual kernel memory access patterns
- Applications attempting to read kernel memory outside their sandbox
Network Indicators:
- No network indicators - this is a local vulnerability
SIEM Query:
No specific SIEM query available as this is a local kernel vulnerability without network traffic indicators.