Unrated severityNVD Advisory· Published Mar 25, 2026· Updated Apr 2, 2026

CVE-2026-20637

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An app may be able to cause unexpected system termination.

Affected products

Apple Inc./Ipadosllm-fuzzy
Cisco Systems, Inc./Cisco iOSllm-fuzzy
Apple Inc./macOS Sequoiallm-fuzzy
Apple Inc./tvOSv5
Range: 0
Apple Inc./macOSv5
Range: 0
Apple Inc./watchOSv5
Range: 0
Apple Inc./Visionosv5
Range: 0
Apple/iOS and iPadOSv5
Range: 0

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

support.apple.com/en-us/126346mitre
support.apple.com/en-us/126348mitre
support.apple.com/en-us/126351mitre
support.apple.com/en-us/126352mitre
support.apple.com/en-us/126353mitre
support.apple.com/en-us/126793mitre
support.apple.com/en-us/126795mitre
support.apple.com/en-us/126796mitre

News mentions

No linked articles in our index yet.

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