AppleCVE-2026-28973

Apple iOS and iPadOS: integer overflow

CVE-2026-28973 · Published Jul 27, 2026 · updated Aug 17, 2026

High8.6

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

An integer overflow was addressed with improved input 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, watchOS 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
watchOS Product	< 26.6	26.6

Details and references

CVSS 3.1: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Severity from: CISA (its enrichment of the CVE record)
Weakness: CWE-190

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