Kernel memory read and crash via out-of-bounds read
Published Aug 17, 2026 · Updated Aug 18, 2026
Out-of-bounds read in the Kernel in Apple macOS before 26.6.2 allows local users to read kernel memory or crash the system. Apple has not disclosed the affected kernel subsystem, but the flaw performs an out-of-bounds read on app-controlled input and the fix adds input validation. Exploitation requires local code execution in an app context and can expose kernel memory or trigger unexpected system termination, with no published evidence that this issue alone enables code execution or privilege gain.
Summary
What happened
Out-of-bounds read in the Kernel in Apple macOS before 26.6.2 allows local users to read kernel memory or crash the system. Apple has not disclosed the affected kernel subsystem, but the flaw performs an out-of-bounds read on app-controlled input and the fix adds input validation. Exploitation requires local code execution in an app context and can expose kernel memory or trigger unexpected system termination, with no published evidence that this issue alone enables code execution or privilege gain.
The record
- CVE
- CVE-2026-65349
- Published
- Aug 17, 2026
- Updated
- Aug 18, 2026
- Vendor
- Apple
- Product
- macOS
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Aug 17, 2026CVE publishedPublication date reported by the CVE source.
- Aug 18, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <26.6.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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