CVE-2025-24223
📋 TL;DR
This is a cross-site request forgery (CSRF) vulnerability in Apple's WebKit browser engine that could allow memory corruption when processing malicious web content. It affects users of Apple devices and software with vulnerable versions of Safari/WebKit. Attackers could potentially exploit this to execute arbitrary code or cause denial of service.
💻 Affected Systems
- Safari
- WebKit
- iOS
- iPadOS
- watchOS
- tvOS
- macOS
- 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 →Safari by Apple
Tvos by Apple
Watchos by Apple
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or installation of persistent malware on affected Apple devices.
Likely Case
Browser/application crash (denial of service) or limited information disclosure from memory corruption.
If Mitigated
Minimal impact with proper web content filtering, network segmentation, and updated software.
🎯 Exploit Status
Exploitation requires user to visit malicious website or process crafted web content. No public exploit code is currently known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: watchOS 11.5, tvOS 18.5, iOS 18.5, iPadOS 18.5, macOS Sequoia 15.5, visionOS 2.5, Safari 18.5
Vendor Advisory: https://support.apple.com/en-us/122404
Restart Required: Yes
Instructions:
1. Open Settings app. 2. Go to General > Software Update. 3. Download and install the latest available update. 4. Restart device when prompted.
🔧 Temporary Workarounds
Disable JavaScript
allTemporarily disable JavaScript in Safari to prevent exploitation via web content.
Safari > Settings > Security > Uncheck 'Enable JavaScript'
Use Content Security Policy
allImplement strict Content Security Policy headers to restrict script execution.
Content-Security-Policy: script-src 'self'
🧯 If You Can't Patch
- Implement network filtering to block access to untrusted websites
- Use application allowlisting to restrict browser usage to essential sites only
🔍 How to Verify
Check if Vulnerable:
Check Safari/WebKit version in browser settings or system information.Check Version:
macOS: sw_vers -productVersion; iOS/iPadOS: Settings > General > About > VersionVerify Fix Applied:
Verify system version matches patched versions listed in Apple advisory.📡 Detection & Monitoring
Log Indicators:
- Browser crash logs
- WebKit process termination
- Memory access violation errors
Network Indicators:
- Unusual outbound connections from browser processes
- Requests to known malicious domains
SIEM Query:
source="*browser*" AND (event="crash" OR event="memory_violation")🔗 References
- https://support.apple.com/en-us/122404
- 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/May/10
- http://seclists.org/fulldisclosure/2025/May/12
- http://seclists.org/fulldisclosure/2025/May/13
- http://seclists.org/fulldisclosure/2025/May/5
- http://seclists.org/fulldisclosure/2025/May/7
- https://lists.debian.org/debian-lts-announce/2025/06/msg00016.html
