CVE-2026-86870

State: Published
Severity: 6.5 Medium
Published: Sep 14, 2026
Updated: Oct 26, 2026
Reserved: Sep 8, 2026

Description

A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27, watchOS 27. Processing a maliciously crafted file may lead to unexpected app termination.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
iOS and iPadOSApple	before 26.7Affected before 27Affected
macOSApple	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/149037
https://support.apple.com/en-us/149038
https://support.apple.com/en-us/149041

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