CVE-2026-43748

Published: Jul 27, 2026Modified: Oct 24, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.

Affected (2)

Products: Apple: Macos

Apple

1 product

Macos

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Apple Macos	15.0 ≤ version < 15.7.8
Apple Macos	26.0 ≤ version < 26.6

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (3)

https://support.apple.com/en-us/128066

Source: product-security@apple.com

https://support.apple.com/en-us/128067

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/128071

Source: product-security@apple.com

Release NotesVendor Advisory

Timeline

No history available yet.