CVE-2026-20687

State: Published
Severity: 7.1 High
Published: Mar 25, 2026
Updated: Oct 26, 2026
Reserved: Nov 11, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H	CISA-ADP

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
iOS and iPadOSApple	before 18.7.7Affected before 26.4Affected
macOSApple	before 15.7.5Affected before 26.4Affected
tvOSApple	before 26.4Affected
watchOSApple	before 26.4Affected

References

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