System crash or kernel-memory write via out-of-bounds write
Published May 11, 2026 · Updated May 11, 2026
Out-of-bounds write in the kernel of affected Apple operating systems allows local users to crash the system or write kernel memory. The kernel fails to validate an app-controlled input before writing beyond the intended buffer; Apple has not disclosed the affected function or input structure. Execution of an app on an affected device is required, and the overwrite can terminate the operating system or modify kernel memory.
Summary
What happened
Out-of-bounds write in the kernel of affected Apple operating systems allows local users to crash the system or write kernel memory. The kernel fails to validate an app-controlled input before writing beyond the intended buffer; Apple has not disclosed the affected function or input structure. Execution of an app on an affected device is required, and the overwrite can terminate the operating system or modify kernel memory.
The record
- CVE
- CVE-2026-28972
- Published
- May 11, 2026
- Updated
- May 11, 2026
- Vendor
- Apple
- Product
- iOS and iPadOS
- Classifications
- CWE-787
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- May 11, 2026CVE publishedPublication date reported by the CVE source.
- May 11, 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?
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- Affected versionversion=0 <18.7.9
- Affected versionversion=0 <26.5
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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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