CVE-2026-43704
Received Received - Intake

Use-After-Free in Safari Leading to Process Crash

Publication date: 2026-06-29

Last updated on: 2026-06-29

Assigner: Apple Inc.

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-06-29
Last Modified
2026-06-29
Generated
2026-06-30
AI Q&A
2026-06-29
EPSS Evaluated
N/A
NVD
CVE-2026-43704

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
apple safari 26.5.2
apple ios 26.5.2
apple ipados 26.5.2
apple macos_tahoe 26.5.2

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a use-after-free issue, which means that the software attempts to use memory after it has been freed. This can lead to unexpected behavior or crashes.

In this case, the issue was addressed by improving memory management in Safari, iOS, iPadOS, and macOS Tahoe.

A malicious web extension could exploit this vulnerability to cause an unexpected process crash.

Impact Analysis

The primary impact of this vulnerability is that a malicious web extension may cause an unexpected process crash.

This could lead to denial of service or instability in the affected applications such as Safari or the operating systems iOS, iPadOS, and macOS Tahoe.

Mitigation Strategies

To mitigate this vulnerability, update affected Apple products to the fixed versions: Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2.

Avoid using malicious web extensions that could trigger unexpected process crashes.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-43704. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart