๐Ÿ›ก๏ธ CVE-2026-20687
๐ŸŸ  CVSS 7.1 โ€” High โœ… No Known Exploit CWE-416 NVD
7.1
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 7.1
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
CWE CWE-416
Public Exploit โœ… No
Source NVD
Published 2026-03-25
Updated 2026-06-02
Modified 2026-03-25
Fix URL N/A

Affected Packages

Software From version Fixed in
ipados 26.0 26.4
iphone-os 26.0 26.4
macos 26.0 26.4
tvos โ€” 26.4
watchos โ€” 26.4

References

Release Notes, Vendor Advisory https://support.apple.com/en-us/126792
Release Notes, Vendor Advisory https://support.apple.com/en-us/126793
Release Notes, Vendor Advisory https://support.apple.com/en-us/126794
Release Notes, Vendor Advisory https://support.apple.com/en-us/126795
Release Notes, Vendor Advisory https://support.apple.com/en-us/126797
Release Notes, Vendor Advisory https://support.apple.com/en-us/126798

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