CVE-2026-64757

⚠️ high

Summary

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 Score

8.8

High

EPSS Score

0.2

Exploit Probability

Published Date

2026-07-27

First Seen: 2026-07-31

📊 Relative Risk Intelligence

This CVE is High Risk - more severe than 81.0% of all 340,405 vulnerabilities in our database.

#64,719

Top 25% most severe

Severity Percentile

🎯 CISA SSVC Assessment Updated: Jul 28, 2026

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Total

Complete system compromise possible

SSVC data provided by CISA

Last Modified 2026-07-28

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE IDs (Weakness Types)

CWE-119

📦 Affected Products 6

Vendor	Product	Status	Affected Versions
apple	safari	Affected	< 26.6
apple	iphone_os	Affected	< 26.6
apple	watchos	Affected	< 26.6
apple	ipados	Affected	< 26.6
apple	macos	Affected	> 26.0 < 26.6
apple	visionos	Affected	< 26.6

🔗 References 5

https://support.apple.com/en-us/128066

Release Notes Vendor Advisory

https://support.apple.com/en-us/128067

Release Notes Vendor Advisory

https://support.apple.com/en-us/128068

Release Notes Vendor Advisory

https://support.apple.com/en-us/128070

Release Notes Vendor Advisory

https://support.apple.com/en-us/128073

Release Notes Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-43792	🔶 medium	6.5	0.3	An authorization issue was addressed with improved state management. This issue is fixed in Safari 26.6, macOS Tahoe 26....	2026-07-27
CVE-2026-43804	🔶 medium	6.5	0.3	This issue was addressed through improved state management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6...	2026-07-27
CVE-2026-43821	🔶 medium	6.5	0.3	An access issue was addressed with improved access restrictions. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS...	2026-07-27
CVE-2026-64713	⚠️ high	8.1	0.3	This issue was addressed with improved checks. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe...	2026-07-27
CVE-2026-64718	🔶 medium	5.5	0.1	A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, iOS 26.6 and i...	2026-07-27
CVE-2026-64719	⚠️ high	8.1	0.3	An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari 26.6, iOS 26.6 ...	2026-07-27

These CVEs affect the same products