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CVE-2026-64774

CRITICAL

9.8

CVSS Severity Score

EPSS Score0.2440%

EPSS Percentile15.70th

Published2026-07-27

Last Modified2026-07-28

Data SourcesNVDFIRST.org EPSS

Vulnerability 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. A remote attacker may be able to cause unexpected application termination or heap corruption.

Affected Platforms (CPE)

💻

Apple

Ipados

< 26.6

💻

Apple

Iphone Os

< 26.6

💻

Apple

Macos

>= 14.0 and < 14.8.8>= 15.0 and < 15.7.8>= 26.0 and < 26.6

💻

Apple

Tvos

< 26.6

References & Advisories

🔗 https://support.apple.com/en-us/128066

🔗 https://support.apple.com/en-us/128067

🔗 https://support.apple.com/en-us/128069

🔗 https://support.apple.com/en-us/128070

🔗 https://support.apple.com/en-us/128071

🔗 https://support.apple.com/en-us/128072

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CVE-2026-64774 Detail & Impact Analysis | CVSS 9.8 (CRITICAL) | Cyber-Sec.Space | Cyber-Sec.Space