CVE-2026-64694
Critical
Description
An integer overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Apple Macos
PublishedJul 27, 2026
First seenJul 27, 2026
Weakness typeCWE-190Integer overflow
How to fix
Update
- apple macos14.8.8, 15.7.8, 26.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| 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 |
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