CVE-2026-43805

Race Condition Threatening Kernel Memory and System Stability in Apple iOS, macOS, watchOS

Published Jul 27, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
A race condition was addressed with improved state handling. 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, watchOS 26.6. An app may be able to cause unexpected system termination or write 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 Race Condition Threatening Kernel Memory and System Stability in Apple iOS, macOS, watchOS
Type Values Removed Values Added
Title Race Condition Allowing Kernel Memory Corruption and Potential System Termination in Apple Operating Systems
Weaknesses CWE-469
Type Values Removed Values Added
Title Race Condition Allowing Kernel Memory Corruption and Potential System Termination in Apple Operating Systems
Weaknesses CWE-362
CWE-469
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', '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 watchos
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Apple watchos
Type Values Removed Values Added
Description A race condition was addressed with improved state handling. 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, watchOS 26.6. An app may be able to cause unexpected system termination or write kernel memory.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Jul 28, 2026, 2:35 PM
Reserved
May 1, 2026, 10:46 PM
Status
Analyzed
Published
Jul 27, 2026, 9:17 PM
Modified
Jul 28, 2026, 6:57 PM