CVE-2026-43742
Received Received - Intake

Use-After-Free in Safari Leading to Unexpected 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. Processing maliciously crafted web content may lead to an unexpected process crash.

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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-2026-43742

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
apple safari 26.5.2
apple ios 26.5.2
apple ipad_os 26.5.2
apple macos_tahoe 26.5.2
apple ipados 26.5.2

Helpful Resources

Exploitability

CWE
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KEV
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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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Executive Summary

This vulnerability is a use-after-free issue in certain Apple software products. It occurs when the software improperly manages memory, leading to the use of memory after it has been freed. This flaw was addressed by improving memory management in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2.

The vulnerability can be triggered by processing maliciously crafted web content, which may cause an unexpected process crash.

Impact Analysis

Exploitation of this vulnerability may lead to an unexpected process crash when processing malicious web content. This could result in denial of service or disruption of normal application operation.

Mitigation Strategies

To mitigate this vulnerability, update your Apple Safari, iOS, iPadOS, or macOS Tahoe to version 26.5.2 or later where the issue has been fixed.

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