CVE-2026-28973 | An integer overflow was addressed with improved input valida… | CVSS 8.6 HIGH

Description

An integer overflow was addressed with improved input validation. This issue is fixed in 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.

Metadata

CVE ID: CVE-2026-28973
State: PUBLISHED
Assigner: apple
Reserved: 2026-03-03 16:36 UTC
Published: 2026-07-27 20:13 UTC
Last updated: 2026-07-28 14:32 UTC
Primary CWE: CWE-190
CWE-190 Integer Overflow or Wraparound
Vendor / Product: Apple / iOS and iPadOS
Sources: cve.org · NVD

Severity & Metrics

8.6 HIGH CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (3)

Vendor	Product	Platform	Versions
Apple	iOS and iPadOS	—	0 < 26.6
Apple	macOS	—	0 < 14.8.8, 0 < 15.7.8, 0 < 26.6
Apple	watchOS	—	0 < 26.6

Weakness (CWE)

CWE	Source	Description
—	cna	A malicious app may be able to break out of its sandbox
CWE-190	adp	CWE-190 Integer Overflow or Wraparound

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.6	HIGH	3.1	adp	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

References (5)