CVE-2026-43753 | An out-of-bounds read was addressed with improved bounds che… | CVSS 4.6 MEDIUM

Description

An out-of-bounds read was addressed with improved bounds checking. 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. An attacker with physical access to a locked device may be able to view sensitive user information.

Metadata

CVE ID: CVE-2026-43753
State: PUBLISHED
Assigner: apple
Reserved: 2026-05-01 22:46 UTC
Published: 2026-07-27 20:13 UTC
Last updated: 2026-07-28 14:28 UTC
Primary CWE: CWE-125
CWE-125 Out-of-bounds Read
Vendor / Product: Apple / iOS and iPadOS
Sources: cve.org · NVD

Severity & Metrics

4.6 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (2)

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

Weakness (CWE)

CWE	Source	Description
—	cna	An attacker with physical access to a locked device may be able to view sensitive user information
CWE-125	adp	CWE-125 Out-of-bounds Read

CVSS scores (1)

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

References (4)