CVE-2026-64718

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-27 · updated 2026-10-26
Weakness: CWE-416

Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, Safari 27, iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, visionOS 27, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Affected products

Apple iPadOS: before 26.6 — fixed in 26.6
Apple Iphone Os: before 26.6 — fixed in 26.6
Apple macOS: from 26.0 before 26.6 — fixed in 26.6
Apple Safari: before 26.6 — fixed in 26.6
Apple tvOS: before 26.6 — fixed in 26.6
Apple visionOS: before 26.6 — fixed in 26.6
Apple watchOS: before 26.6 — fixed in 26.6
Apple iOS and iPadOS: before 26.6; before 26.7; before 27 — fixed in 26.6, 26.7, 27
Apple macOS: before 26.6; before 27 — fixed in 26.6, 27
Apple Safari: before 26.6; before 27 — fixed in 26.6, 27
Apple tvOS: before 26.6 — fixed in 26.6
Apple visionOS: before 26.6; before 27 — fixed in 26.6, 27
Apple watchOS: before 26.6 — fixed in 26.6

How to fix

Upgrade to a fixed version: Apple iPadOS 26.6; Apple Iphone Os 26.6; Apple macOS 26.6; Apple Safari 26.6; Apple tvOS 26.6; Apple visionOS 26.6; Apple watchOS 26.6; Apple iOS and iPadOS 26.6, 26.7, 27; Apple macOS 26.6, 27; Apple Safari 26.6, 27; Apple tvOS 26.6; Apple visionOS 26.6, 27. Check the vendor advisory for mitigations.

References

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