CVE-2026-64783
Received Received - Intake

Use-After-Free in Safari with Malicious Web Content

Publication date: 2026-07-27

Last updated on: 2026-07-27

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, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.

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Meta Information

Published
2026-07-27
Last Modified
2026-07-27
Generated
2026-07-28
AI Q&A
2026-07-28
EPSS Evaluated
N/A
NVD
CVE-2026-64783
EUVD
EUVD-2026-49451

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
apple safari 26.6
apple ios 26.6
apple ipad_os 26.6
apple macos_tahoe 26.6
apple visionos 26.6
apple watchos 26.6

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a use-after-free vulnerability caused by improper memory management. It occurs when a program continues to use memory after it has been freed, potentially leading to crashes or unexpected behavior. In this case, processing malicious web content could trigger the issue.

Impact Analysis

The vulnerability may cause Safari or other affected Apple software to crash unexpectedly when processing malicious web content. This could disrupt normal use of the browser or device until the software is updated.

Mitigation Strategies

Update affected Apple products to the fixed versions: Safari 26.6, iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6, or watchOS 26.6. Disable automatic loading of web content if possible until updates are applied.

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