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iOS, iPadOS, and other Apple operating systems may crash under certain conditions
CVE-2026-28886
Summary
A security fix has been released for Apple operating systems, which improves input validation to prevent a potential denial-of-service attack. This means that a malicious user with access to a network could cause the system to crash. Update your devices to the latest version to ensure you have the fix.
Original title
A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, ma...
Original description
A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. A user in a privileged network position may be able to cause a denial-of-service.
- https://support.apple.com/en-us/126792
- https://support.apple.com/en-us/126793
- https://support.apple.com/en-us/126794
- https://support.apple.com/en-us/126795
- https://support.apple.com/en-us/126796
- https://support.apple.com/en-us/126797
- https://support.apple.com/en-us/126798
- https://support.apple.com/en-us/126799
Published: 25 Mar 2026 · Updated: 25 Mar 2026 · First seen: 25 Mar 2026