CVE-2026-64718

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Use-After-Free in Safari Leading to Crash via Malicious Web Content

Publication date: 2026-07-27

Last updated on: 2026-07-29

Assigner: Apple Inc.

Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-27

Last Modified

2026-07-29

Generated

2026-08-17

AI Q&A

2026-07-28

EPSS Evaluated

2026-08-15

NVD

CVE-2026-64718

EUVD

EUVD-2026-49618

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 26.0 (inc) to 26.6 (exc)
apple	ipados	to 26.6 (exc)
apple	iphone_os	to 26.6 (exc)
apple	tvos	to 26.6 (exc)
apple	visionos	to 26.6 (exc)
apple	safari	to 26.6 (exc)
apple	watchos	to 26.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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

Executive Summary

This is a use-after-free vulnerability caused by improper memory management. Processing specially crafted web content could lead to unexpected crashes in Safari and other Apple software.

Detection Guidance

This vulnerability is specific to Apple software and relates to web content processing. Detection requires checking installed versions of Safari, iOS, iPadOS, macOS Tahoe, tvOS, visionOS, or watchOS against the patched versions (26.6 or later). No direct network or system commands are provided in the CVE details.

Impact Analysis

The vulnerability may cause Safari or other affected Apple applications to crash unexpectedly when visiting malicious websites. This could disrupt normal use of the device or browser.

Compliance Impact

The provided CVE data does not specify how this vulnerability impacts compliance with standards like GDPR or HIPAA. The issue involves a use-after-free flaw in Safari and related Apple products, which could lead to crashes but lacks details on data exposure or regulatory implications.

Mitigation Strategies

Update affected Apple products to the latest versions: Safari 26.6, iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, or watchOS 26.6. Avoid processing untrusted web content until updates are applied.

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