Unrated severityNVD Advisory· Published Jul 27, 2026· Updated Jul 29, 2026

CVE-2026-64766

Description

An integer overflow was addressed with improved input validation. This issue is fixed in 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. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Affected products

Apple Inc./tvOSllm-fuzzy
Range: 26.6
Apple Inc./Ipadosllm-fuzzy
Range: 26.6
Apple Inc./watchOSllm-fuzzy
Range: 26.6
Apple Inc./Visionosllm-fuzzy
Range: 26.6
Apple Inc./macOS Sequoiallm-fuzzy
Range: 15.7.8
Apple Inc./macOS Sonomallm-fuzzy
Range: 14.8.8
Apple Inc./macOS Tahoellm-fuzzy
Range: 26.6
Apple Inc./iOSllm-fuzzy
Range: 26.6

Patches

Vulnerability mechanics

References

support.apple.com/en-us/128066mitre
support.apple.com/en-us/128067mitre
support.apple.com/en-us/128068mitre
support.apple.com/en-us/128069mitre
support.apple.com/en-us/128070mitre
support.apple.com/en-us/128071mitre
support.apple.com/en-us/128072mitre

News mentions

⚡ Weekly Recap: Rogue AI Models, $88M Bitcoin Theft, Water-System Attacks and Dangling DNS Hijacks
The Hacker News · Aug 3, 2026

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