CVE-2026-64747

Kernel Buffer Overflow Allows Code Execution in Apple iOS, iPadOS, macOS, and Other Operating Systems

Published Jul 27, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
A buffer overflow was addressed with improved size validation. 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 app may be able to execute arbitrary code with kernel privileges.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Kernel Buffer Overflow Allows Code Execution in Apple iOS, iPadOS, macOS, and Other Operating Systems
Type Values Removed Values Added
Description A buffer overflow was addressed with improved size 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. An app may be able to execute arbitrary code with kernel privileges. A buffer overflow was addressed with improved size validation. 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 app may be able to execute arbitrary code with kernel privileges.
References
Type Values Removed Values Added
Title Kernel Privilege Escalation via Buffer Overflow in Apple OS
Type Values Removed Values Added
Title Kernel Privilege Escalation via Buffer Overflow in Apple OS
Type Values Removed Values Added
Weaknesses CWE-120
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Apple tvos
Apple visionos
Apple watchos
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Apple tvos
Apple visionos
Apple watchos
Type Values Removed Values Added
Description A buffer overflow was addressed with improved size 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. An app may be able to execute arbitrary code with kernel privileges.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Aug 17, 2026, 9:30 PM
Reserved
Jul 20, 2026, 6:10 PM
Status
Modified
Published
Jul 27, 2026, 9:17 PM
Modified
Aug 17, 2026, 10:17 PM