CVE-2026-64771
Critical
Description
A buffer overflow 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 Tahoe 26.6, tvOS 26.6, visionOS 26.6. A remote attacker may be able to cause unexpected application termination or heap corruption.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Apple Ipados
PublishedJul 27, 2026
First seenJul 27, 2026
Weakness typeCWE-119Memory buffer bounds error
How to fix
Update
- apple ipados26.6 or later
- apple iphone_os26.6 or later
- apple macos15.7.8, 26.6 or later
- apple tvos26.6 or later
- apple visionos26.6 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 | 15.0 ≤ v < 15.7.8, 26.0 ≤ v < 26.6 | 15.7.8, 26.6 |
| apple tvos | v < 26.6 | 26.6 |
| apple visionos | v < 26.6 | 26.6 |
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