CVE-2026-39868

Kernel Memory Corruption via Improper Input Validation

Published Jun 29, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
This issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.

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 Memory Corruption via Improper Input Validation
Type Values Removed Values Added
Description This issue was addressed with improved input validation. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory. This issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.
References
Type Values Removed Values Added
Title Kernel Memory Corruption via Improper Input Validation
Type Values Removed Values Added
Title Kernel Memory Corruption via Improper Input Validation
Type Values Removed Values Added
Description This issue was addressed with improved input validation. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system termination or corrupt kernel memory. This issue was addressed with improved input validation. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.
References
Type Values Removed Values Added
Title Kernel Memory Corruption and System Termination Vulnerability in Apple iOS, iPadOS, and macOS
Weaknesses CWE-119
CWE-122
Type Values Removed Values Added
Weaknesses CWE-20
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Type Values Removed Values Added
Title Kernel Memory Corruption and System Termination Vulnerability in Apple iOS, iPadOS, and macOS
Weaknesses CWE-119
CWE-122
Type Values Removed Values Added
Description This issue was addressed with improved input validation. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system termination or corrupt kernel memory.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Aug 17, 2026, 9:31 PM
Reserved
Apr 7, 2026, 7:58 PM
Status
Modified
Published
Jun 29, 2026, 8:17 PM
Modified
Aug 17, 2026, 10:17 PM