Kernel-memory disclosure via insufficient validation
Published Jul 27, 2026 · Updated Jul 27, 2026
Kernel information disclosure in macOS Sonoma before 14.8.8, Sequoia before 15.7.8, and Tahoe before 26.6 allows local users to read kernel memory. Apple attributes the leak to insufficient validation in the Kernel but has not disclosed the affected interface, input, or operation. A user must run an app locally; the reported consequence is kernel-memory disclosure, with no integrity or availability impact.
Summary
What happened
Kernel information disclosure in macOS Sonoma before 14.8.8, Sequoia before 15.7.8, and Tahoe before 26.6 allows local users to read kernel memory. Apple attributes the leak to insufficient validation in the Kernel but has not disclosed the affected interface, input, or operation. A user must run an app locally; the reported consequence is kernel-memory disclosure, with no integrity or availability impact.
The record
- CVE
- CVE-2026-64744
- Published
- Jul 27, 2026
- Updated
- Jul 27, 2026
- Vendor
- Apple
- Product
- macOS
- Classifications
- CWE-200, T1005
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 27, 2026CVE publishedPublication date reported by the CVE source.
- Jul 27, 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 <14.8.8
- Affected versionversion=0 <15.7.8
- Affected versionversion=0 <26.6
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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