CVE-2026-64749 | The issue was addressed with improved memory handling. This … | CVSS 7.8 HIGH

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, visionOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.

Metadata

CVE ID: CVE-2026-64749
State: PUBLISHED
Assigner: apple
Reserved: 2026-07-20 18:10 UTC
Published: 2026-07-27 20:13 UTC
Last updated: 2026-07-28 17:55 UTC
Primary CWE: CWE-119
CWE-119 Improper Restriction of Operations within the Bounds…
Vendor / Product: Apple / iOS and iPadOS
Sources: cve.org · NVD

Severity & Metrics

7.8 HIGH CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/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 < 15.7.8, 0 < 26.6
Apple	visionOS	—	0 < 26.6

Weakness (CWE)

CWE	Source	Description
—	cna	An app may be able to cause unexpected system termination or corrupt kernel memory
CWE-119	adp	CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

CVSS scores (1)

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

References (4)