CVE-2026-64739
High
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An attacker may be able to cause unexpected app termination.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Apple Ipados
PublishedJul 27, 2026
First seenJul 27, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- apple ipados26.6 or later
- apple iphone_os26.6 or later
- apple macos14.8.8, 15.7.8, 26.6 or later
- apple tvos26.6 or later
- apple visionos26.6 or later
- apple watchos26.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple ipados | v < 26.6 | 26.6 |
| apple iphone_os | v < 26.6 | 26.6 |
| apple macos | 14.0 ≤ v < 14.8.8, 15.0 ≤ v < 15.7.8, 26.0 ≤ v < 26.6 | 14.8.8, 15.7.8, 26.6 |
| apple tvos | v < 26.6 | 26.6 |
| apple visionos | v < 26.6 | 26.6 |
| apple watchos | v < 26.6 | 26.6 |
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