AppleCVE-2026-43776

Apple iOS and iPadOS: buffer overflow

CVE-2026-43776 · Published Jul 27, 2026 · updated Aug 17, 2026

High7.8

Fix: upgrade to 18.7.10 or later (3 fixed versions below)

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, 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.

Affected versions

Package	Affected	Fixed in
iOS and iPadOS Product	< 18.7.10	18.7.10
	< 26.6	26.6
macOS Product	< 15.7.8	15.7.8
	< 26.6	26.6

Details and references

CVSS 3.1: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity from: CISA (its enrichment of the CVE record)
Weakness: CWE-120

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