CVE-2026-28928 | A use after free issue was addressed with improved memory ma… | CVSS 9.8 CRITICAL

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.

Metadata

CVE ID: CVE-2026-28928
State: PUBLISHED
Assigner: apple
Reserved: 2026-03-03 16:36 UTC
Published: 2026-07-27 20:12 UTC
Last updated: 2026-07-28 14:34 UTC
Primary CWE: CWE-416
CWE-416 Use After Free
Vendor / Product: Apple / iOS and iPadOS
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (4)

Vendor	Product	Platform	Versions
Apple	iOS and iPadOS	—	0 < 26.6
Apple	macOS	—	0 < 26.6
Apple	tvOS	—	0 < 26.6
Apple	watchOS	—	0 < 26.6

Weakness (CWE)

CWE	Source	Description
—	cna	An app may be able to cause unexpected system termination
CWE-416	adp	CWE-416 Use After Free

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (4)