CVE-2026-43704 | A use-after-free issue was addressed with improved memory ma… | CVSS 5.3 MEDIUM

Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. A malicious web extension may be able to cause an unexpected process crash.

Metadata

CVE ID: CVE-2026-43704
State: PUBLISHED
Assigner: apple
Reserved: 2026-05-01 22:46 UTC
Published: 2026-06-29 19:42 UTC
Last updated: 2026-06-29 21:44 UTC
Primary CWE: CWE-416
CWE-416 Use After Free
Vendor / Product: Apple / Safari
Sources: cve.org · NVD

Severity & Metrics

5.3 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (3)

Vendor	Product	Platform	Versions
Apple	iOS and iPadOS	—	0 < 26.5.2
Apple	macOS	—	0 < 26.5.2
Apple	Safari	—	0 < 26.5.2

Weakness (CWE)

CWE	Source	Description
—	cna	A malicious web extension may be able to cause an unexpected process crash
CWE-416	adp	CWE-416 Use After Free

CVSS scores (1)

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

References (3)