CVE-2025-24213
📋 TL;DR
A type confusion vulnerability in Apple's WebKit browser engine could allow memory corruption when processing floating-point numbers. This affects users of Apple devices running vulnerable versions of iOS, iPadOS, macOS, tvOS, watchOS, and visionOS. Attackers could potentially exploit this to execute arbitrary code or cause application crashes.
💻 Affected Systems
- Safari
- WebKit-based applications
📦 What is this software?
Ipados by Apple
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 →Safari by Apple
Tvos by Apple
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full device compromise, data theft, or installation of persistent malware.
Likely Case
Application crashes (denial of service) or limited information disclosure through memory corruption.
If Mitigated
No impact if patched; reduced risk with security controls like sandboxing and memory protection.
🎯 Exploit Status
Exploitation requires user interaction (visiting malicious website). No public exploits known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: tvOS 18.5, Safari 18.5, iPadOS 17.7.7, iOS 18.5, iPadOS 18.5, macOS Sequoia 15.5, watchOS 11.5, visionOS 2.5
Vendor Advisory: https://support.apple.com/en-us/122404
Restart Required: Yes
Instructions:
1. Open Settings app. 2. Go to General > Software Update. 3. Install available updates. 4. Restart device when prompted.
🔧 Temporary Workarounds
Disable JavaScript
allTemporarily disable JavaScript in Safari to prevent exploitation via web content
Use alternative browser
macOSUse non-WebKit browsers (Chrome, Firefox) until patches are applied
🧯 If You Can't Patch
- Implement network filtering to block malicious websites
- Enable application sandboxing and memory protection features
🔍 How to Verify
Check if Vulnerable:
Check current OS version against vulnerable versions listed in Apple advisoriesCheck Version:
On macOS: sw_vers. On iOS/iPadOS: Settings > General > About > VersionVerify Fix Applied:
Verify OS version matches or exceeds patched versions listed in fix information📡 Detection & Monitoring
Log Indicators:
- Safari/WebKit crash logs
- Memory access violation errors
- Unexpected process termination
Network Indicators:
- Connections to suspicious domains with malformed web content
- Unusual JavaScript execution patterns
SIEM Query:
source="apple_system_logs" AND (process="Safari" OR process="WebKit") AND (event="crash" OR event="memory_violation")🔗 References
- https://support.apple.com/en-us/122404
- https://support.apple.com/en-us/122405
- https://support.apple.com/en-us/122716
- https://support.apple.com/en-us/122719
- https://support.apple.com/en-us/122720
- https://support.apple.com/en-us/122721
- https://support.apple.com/en-us/122722
- http://seclists.org/fulldisclosure/2025/Apr/11
- http://seclists.org/fulldisclosure/2025/Apr/13
- http://seclists.org/fulldisclosure/2025/Apr/2
- http://seclists.org/fulldisclosure/2025/Apr/4
- http://seclists.org/fulldisclosure/2025/Apr/5
- http://seclists.org/fulldisclosure/2025/Apr/8
- http://seclists.org/fulldisclosure/2025/May/10
- http://seclists.org/fulldisclosure/2025/May/11
- http://seclists.org/fulldisclosure/2025/May/13
- http://seclists.org/fulldisclosure/2025/May/6
- http://seclists.org/fulldisclosure/2025/May/7
- https://lists.debian.org/debian-lts-announce/2025/06/msg00016.html
