AppleCVE-2026-64740

Apple iOS and iPadOS: path traversal

CVE-2026-64740 · Published Jul 27, 2026 · updated Aug 17, 2026

Critical9.3

Fix: upgrade to 18.7.10 or later (4 fixed versions below)

A parsing issue in the handling of directory paths was addressed with improved path validation. 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 Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6. A malicious app may be able to break out of its sandbox.

Affected versions

Package	Affected	Fixed in
iOS and iPadOS Product	< 18.7.10	18.7.10
	< 26.6	26.6
macOS Product	< 14.8.8	14.8.8
	< 15.7.8	15.7.8
	< 26.6	26.6
tvOS Product	< 26.6	26.6

Details and references

CVSS 3.1: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Severity from: CISA (its enrichment of the CVE record)
Weakness: CWE-22

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Apple iOS and iPadOS: buffer overflowCVE-2026-64771fixed in 18.7.10 +2 Critical 9.8Jul 27

Apple iOS and iPadOS: out-of-bounds writeCVE-2026-64772fixed in 18.7.10 +2 Critical 9.8Jul 27

Apple iOS and iPadOS: integer overflowCVE-2026-64774fixed in 18.7.10 +3 Critical 9.8Jul 27

A memory initialization issue was addressed with improved memory handlingCVE-2026-64775fixed in 26.6 +2