CVE-2026-86918

State: Published
Severity: 4.3 Medium
Published: Oct 20, 2026
Updated: Oct 26, 2026
Reserved: Sep 8, 2026

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted image may lead to unexpected app termination.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	CISA-ADP

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
iOS and iPadOSApple	before 27Affected
macOSApple	before 27Affected
tvOSApple	before 27Affected
visionOSApple	before 27Affected
watchOSApple	before 27Affected

References

https://support.apple.com/en-us/149034
https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149036
https://support.apple.com/en-us/149037
https://support.apple.com/en-us/149038

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