Process termination via improper Model I/O size validation
Published Sep 14, 2026 · Updated Sep 14, 2026
Buffer overflow in Model I/O in Apple iOS, iPadOS, macOS, tvOS, and visionOS allows attackers to terminate a process via a crafted file. Model I/O performs inadequate size validation on attacker-controlled file data, allowing a buffer overflow; Apple has not disclosed a narrower code locus. Exploitation requires a user or application to open the file, and the reported consequence is process termination rather than code execution or data exposure.
Summary
What happened
Buffer overflow in Model I/O in Apple iOS, iPadOS, macOS, tvOS, and visionOS allows attackers to terminate a process via a crafted file. Model I/O performs inadequate size validation on attacker-controlled file data, allowing a buffer overflow; Apple has not disclosed a narrower code locus. Exploitation requires a user or application to open the file, and the reported consequence is process termination rather than code execution or data exposure.
The record
- CVE
- CVE-2026-84497
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Vendor
- Apple
- Product
- iOS and iPadOS
- Classifications
- T1204.002
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 14, 2026CVE publishedPublication date reported by the CVE source.
- Sep 14, 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 <26.7
- Affected versionversion=0 <27
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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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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