Apple Releases Critical Security Updates: iOS 15.8.7, iOS 16.7.15, iPadOS 15.8.7 & iPadOS 16.7.15

Apple has released iOS 15.8.7, iOS 16.7.15, iPadOS 15.8.7, and iPadOS 16.7.15 on March 11, 2026 — critical security patches for older iPhones and iPads that address serious WebKit and Kernel vulnerabilities tied to the Coruna exploit.

If you’re still rocking an older iPhone or iPad that can’t run iOS 26, Apple hasn’t forgotten about you. On March 11, 2026, Apple released iOS 15.8.7, iOS 16.7.15, iPadOS 15.8.7, and iPadOS 16.7.15 — critical security updates targeting vulnerabilities that have been actively exploited in the wild. These are important updates and you should install them as soon as possible.

What Vulnerabilities Were Fixed?

iOS 16.7.15 & iPadOS 16.7.15

This update addresses a serious WebKit memory corruption vulnerability associated with the “Coruna” exploit (CVE-2023-43010). A malicious website or web content could potentially exploit this flaw to corrupt memory and execute arbitrary code on your device. If you’re on iOS 16, this patch is essential.

iOS 15.8.7 & iPadOS 15.8.7

Devices too old for iOS 16 received an even more comprehensive patch covering four separate vulnerabilities tied to the same Coruna exploit chain:

  • CVE-2023-41974 — Kernel vulnerability (discovered by Félix Poulin-Bélanger)
  • CVE-2024-23222 — WebKit vulnerability
  • CVE-2023-43000 — WebKit vulnerability
  • CVE-2023-43010 — WebKit memory corruption

These are serious flaws. If you have personal photos, messages, passwords, or financial apps on an older device, updating now protects your data.

Which Devices Are Affected?

iOS/iPadOS 16.7.15 is available for:

  • iPhone 8, iPhone 8 Plus, iPhone X
  • iPad 5th generation
  • iPad mini 4th generation
  • iPad Air 2
  • iPad Pro (9.7-inch and 12.9-inch 1st generation)

iOS/iPadOS 15.8.7 is available for even older devices including:

  • iPhone 6s series and iPhone SE (1st generation)
  • iPod touch (7th generation)
  • iPad Air 2, iPad mini 4th generation, and certain older iPad Pro models

How to Update Your Older iPhone or iPad

  1. Go to Settings → General → Software Update
  2. You should see the applicable update available for your device
  3. Back up your device first — either to iCloud or via your Mac/PC — before installing
  4. Make sure you have enough free storage space and a stable Wi-Fi connection
  5. Tap Download and Install

Note: These updates are for devices that cannot run iOS 17 or iOS 18. If your device supports iOS 18, you will see iOS 18.7.6 instead. If your device supports iOS 26, you should already be on that branch.

Is It Time to Upgrade Your Device?

If you’re running iOS 15 or 16, your device is several years old at this point and may be approaching end-of-life for security updates. While Apple continues to patch critical vulnerabilities on older hardware, the frequency and coverage of those patches will decrease over time. If performance, battery life, or camera quality have been frustrating you, now might be the right moment to consider an upgrade.

Here are some great options available on Amazon:

And if you want to protect your current older device while it’s still serving you well, a good case is always a smart investment:

Bottom Line

Don’t skip these updates. The Coruna exploit vulnerabilities being patched here have been associated with real-world attacks, meaning these aren’t hypothetical risks. If you or someone in your family is still using an older iPhone or iPad, go install the update right now. It only takes a few minutes and could save you from a serious security incident.

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