CVE-2026-28896

Improper Kernel Memory Handling Leads to System Crash or Kernel Memory Exposure

Published Jul 27, 2026 CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed
Description
The issue was addressed with improved memory handling. This issue is fixed in iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. An attacker may be able to cause unexpected system termination or read 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 Improper Kernel Memory Handling Leads to System Crash or Kernel Memory Exposure
Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. An attacker may be able to cause unexpected system termination or read kernel memory. The issue was addressed with improved memory handling. This issue is fixed in iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. An attacker may be able to cause unexpected system termination or read kernel memory.
References
Type Values Removed Values Added
Title MacOS Kernel Memory Exposure and Unexpected System Termination
Type Values Removed Values Added
Title MacOS Kernel Memory Exposure and Unexpected System Termination
Weaknesses CWE-122
Type Values Removed Values Added
Title Kernel Memory Read and Unexpected Termination via Improper Memory Handling in macOS
Type Values Removed Values Added
Title Kernel Memory Read and Unexpected Termination via Improper Memory Handling in macOS
Weaknesses CWE-119
CWE-122
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H'}

ssvc

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

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos
Type Values Removed Values Added
Description The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. An attacker may be able to cause unexpected system termination or read kernel memory.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Aug 21, 2026, 12:38 AM
Reserved
Mar 3, 2026, 4:36 PM
Status
Modified
Published
Jul 27, 2026, 9:16 PM
Modified
Oct 24, 2026, 1:10 PM