CVE-2026-64757

Analyzed Analyzed - Analysis Complete

Memory Corruption in Safari with Malicious Web Content

Publication date: 2026-07-27

Last updated on: 2026-07-28

Assigner: Apple Inc.

Description

A memory corruption issue was addressed with improved state 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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-27

Last Modified

2026-07-28

Generated

2026-08-17

AI Q&A

2026-07-28

EPSS Evaluated

2026-08-15

NVD

CVE-2026-64757

EUVD

EUVD-2026-49438

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	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-119	The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

Executive Summary

This is a memory corruption issue caused by improper state management in Safari and related Apple operating systems. It allows maliciously crafted web content to trigger an unexpected crash in the Safari browser.

Detection Guidance

This vulnerability is specific to Apple software and may cause unexpected Safari crashes when processing malicious web content. Detection typically involves monitoring for crashes in Safari or related Apple applications and checking software versions.

Impact Analysis

If you visit a malicious website, it could cause Safari to crash unexpectedly. This may lead to temporary loss of access to open tabs or unsaved data, but does not appear to allow code execution or data theft based on the provided information.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or other standards as it only causes unexpected Safari crashes without evidence of data exposure or unauthorized access.

Mitigation Strategies

Update affected Apple software to the latest versions: Safari 26.6, iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6, or watchOS 26.6. This resolves the memory corruption issue by improving state management.

Hi! I’m here to help you understand CVE-2026-64757. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70