CVE-2026-43776

HIGH | Platform: macOS | Changelog

CVE Details

Description

A buffer overflow 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. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

CVSS 3.1 Score

Metric	Value
Base Score	7.8 (HIGH)
Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`

Weakness

CWE-120

References

Apple Security Advisory
NVD Entry
https://support.apple.com/en-us/128066 (Release Notes, Vendor Advisory)
https://support.apple.com/en-us/128067 (Release Notes, Vendor Advisory)