Apple has just released iOS 18.7.3 and iPadOS 18.7.3 for older devices, including the iPhone XS Max and iPad 7th generation. While this is a minor version update, it addresses several high-risk security vulnerabilities, including issues in the Kernel and WebKit engine. If you are using an older device, Immediate Update Recommended to prevent potential security risks.
Quick Overview
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Release Date: December 12, 2025
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Build Number: 22H217
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Update Type: Security patch only (no new features)
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Target Users: Older devices that cannot upgrade to iOS 26 or users who wish to stay on iOS 18
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Compatibility Alert: Which Update Should You Install?
It’s easy to get confused about which update your device should receive. Here’s a clear breakdown:
| Device Type | Recommended Action | Reason |
|---|---|---|
| Older Devices (iPhone XS, XR, iPad 7) | Install iOS 18.7.3 / iPadOS 18.7.3 | Provides the latest official security protection for this hardware |
| Newer Devices (iPhone 11 and later) | Upgrade to iOS 26.2 | Apple has stopped issuing security patches for older systems on devices that support iOS 26 |
Important: If your device is compatible with iOS 26, Apple's system logic will prioritize the newest OS. You won't see 18.7.3 because Apple expects you to move to iOS 26.2 for protection.
(Click here: This article explaining why some devices don’t see 18.7.3)
iOS 18.7.3 & iPadOS 18.7.3 Security Fixes: Detailed Technical Overview
1. Kernel Vulnerabilities
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Patched privilege escalation issues that could allow arbitrary code execution.
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Strengthened core security to prevent unauthorized access.
2. WebKit Engine
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Hardened memory management to prevent remote attacks via malicious web content.
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Fixes multiple browser engine memory corruption vulnerabilities.
3. FaceTime
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Resolved privacy loopholes in specific call scenarios that could expose sensitive user data.
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How to Update iOS / iPadOS 18.7.3
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Open Settings → General → Software Update
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Check for available updates
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Select iOS / iPadOS 18.7.3 (if listed) or upgrade to iOS 26.2 if your device requires it
Update Tips:
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Backup First: Even for minor updates, back up via iCloud or a computer.
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Free Up Storage: Ensure at least 2GB of free space for smooth download and installation.
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Check Auto-Update Settings: If you want to stay on iOS 18, go to Settings → General → Software Update → Automatic Updates and disable the option to upgrade to iOS 26.
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Conclusion: Why You Should Update Immediately
iOS / iPadOS 18.7.3 is a lifesaver for iPhone XS series and iPad 7 users. It demonstrates Apple’s commitment to protecting older devices against critical vulnerabilities.
Action: Update your device now to secure your system and prevent potential exploits. Do not wait—security updates are crucial for safeguarding your personal data and device stability.
