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

CVE-2026-20687

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 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Tahoe 26.4, tvOS 26.4, watchOS 26.4. An app may be able to cause unexpected system termination or write kernel memory.

Affected products

Apple Inc./Ipadosllm-fuzzy
Range: = 18.7.7, = 26.4
Cisco Systems, Inc./Cisco iOSllm-fuzzy
Range: = 18.7.7, = 26.4
Apple Inc./macOS Sequoiallm-fuzzy
Range: = 15.7.5
Apple Inc./tvOSv5
Range: 0
Apple Inc./macOSv5
Range: 0
Apple Inc./watchOSv5
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/126792mitre
support.apple.com/en-us/126793mitre
support.apple.com/en-us/126794mitre
support.apple.com/en-us/126795mitre
support.apple.com/en-us/126797mitre
support.apple.com/en-us/126798mitre

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000