CVE-2026-43774 | An out-of-bounds read was addressed with improved bounds che… | CVSS 5.5 MEDIUM

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to access sensitive user data.

Metadata

CVE ID: CVE-2026-43774
State: PUBLISHED
Assigner: apple
Reserved: 2026-05-01 22:46 UTC
Published: 2026-07-27 20:12 UTC
Last updated: 2026-07-28 16:31 UTC
Primary CWE: CWE-787
CWE-787 Out-of-bounds Write
Vendor / Product: Apple / macOS
Sources: cve.org · NVD

Severity & Metrics

5.5 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (1)

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

Weakness (CWE)

CWE	Source	Description
—	cna	An app may be able to access sensitive user data
CWE-787	adp	CWE-787 Out-of-bounds Write

CVSS scores (1)

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

References (3)